On August 16, 1996, two men, Daryl Atkins and William Jones, robbed, kidnapped, and then shot and killed Eric Nesbitt, a local airman from the U.S. Air Force. A clinical psychologist evaluated Atkins and testified at the trial that Atkins had an IQ of 59. The mean IQ score is 100.Here's the best way to solve it. 3. In a large population of college-educated adults, the mean IQ is 112 with standard deviation 25. Suppose 300 adults from this population are randomly selected for a market research campaign. The probability that the sample mean IQ is greater than 115 is: a. 0.019.Table 5.4.1 5.4. 1. The graph above shows the standard normal distribution (with the mean 0). Each decimal number in the table represents the probability (percentage) that a data value is between 0 and the corresponding z z -value. For instance, about 34% of all data values lie between z z =0 (mean) and z z =1.0. The average IQ score is 100. Take this fast, free and accurate online IQ test to see how well you compare. Your upholstered furniture may contain flame retardants. The revised California TB 117 (TB 117-2013) went into effect in 2015 (giving manufacturers some time to change their practices). So, if your furniture has polyurethane foam and was made before 2015, it is likely to contain flame retardants. Made of petroleum, polyurethane foam is very ...In other words, an IQ of 110 means that you're cognitively well-adjusted and have no trouble functioning in society and performing well in academic and professional settings. Top 5 Career Choices That Fit a 110 IQ. An IQ of 110 performs well in most careers, as regular jobs are designed in such a way that a person of average intelligence can ...The concept of IQ encompasses a wide range of cognitive skills, including memory, problem-solving abilities, mathematical skill, language comprehension, and more. …IQ was originally computed by taking the ratio of mental age to chronological (physical) age and multiplying by 100. Thus, if a 10-year-old child had a mental age of 12 (that is, performed on the test at the level of an average 12-year-old), the child was assigned an IQ of 12 / 10 × 100, or 120. If the 10-year-old had a mental age of 8, the child's IQ would be 8 / 10 × 100, or 80.The Stanford Binet test has a standard deviation of 16 and the Cattell Culture Fair test has a standard deviation of 24. This means that the Mensa IQ requirement for minimum score on the Stanford-Binet is 132, while the lowest qualifying Mensa score for the CFIT is 148. An average Mensa IQ score has not been made publically available, so we can ...22 Nov 2011 ... If you have an IQ of at least 115, you can do any job ... People with low and high IQ scores can work almost any job at almost any level. But it ...118. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...In a large population of adults_ the mean IQ is 117 with a standard deviation of 23. Suppose 60 adults are randomly selected for a market research campaign: (Round all answers to 4 decimal places; if needed:) (a) The distribution of IQ is approximately normal (b) The distribution of the sample mean IQ is approximately normal with a mean of and a standard deviation of (c) The probability that ...What IQ Scores Really Mean - 117 IQ score means. Most iq tests score an individual on a scale of 100. The highest score possible is 145, and the lowest score possible is 61; scores between these two extremes represents just one standard deviation from the mean iq for that group.[5]A 137 IQ score is considered to be high. It places an individual in the 99th percentile, meaning they have a higher IQ than 99% of the population. This score is often associated with high intellectual potential and is commonly found among individuals who excel acadically. However, it's important to note that an IQ score is not the sole measure ...So, when you see number 117, it means that it is time for spiritual awakening. You have to know what your life purpose is and you have to reach your goals. Angel number 117 means that you should be grateful …An IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores. A standard devation of 15 means 68% of the norm group has scored between 85 (100 - 15) and 115 (100 + 15). In other words, 68% of the norm group has a score ...This means that a score of 117 on an IQ test with a standard deviation of 16 points is better than roughly 85.5% of test takers for this test. Flipping it around, a score of 117 on this test would put my score in the top 14.5% of test takers (i.e. 100% minus the percentile of 85.5% = …IQ tests are incredibly short snap shots of individual's intelligent functioning. Testing is often done to identify complications in learning for children. If caught early enough, adjustments can be made for their education. IQ's are fluid, which means that they will change with age. Comparing performance with the average as well as ...In a large population of adults, the mean IQ is 117 with a standard deviation of 21. Suppose 55 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normalis exactly normalmay or may not be normalis certainly skewed.IQ scores in a certain population are normally distributed with a mean of 99 and a standard deviation of 19. (Give your answers correct to four decimal places.) (a) Find the probability that a randomly selected person will have an IQ score between 98 and 108. (b) Find the probability that a randomly selected person will have an IQ score above 92.Considering that there is some noise in measuring IQ, and some people take tests repeatedly, there might actually be more Mensans with IQ 129 than with IQ 131. So I would guess 130 as the average. ... In the general population, the median IQ is 100 (means that fifty percent of the population has less than this score, by the way). The statistics ...Intelligence Quotient, commonly known as IQ, is a measure of a person's cognitive abilities in comparison to the general population. An IQ score of 140 is considered to be near genius or genius level. ... A score of 140 falls into the 'near genius or genius' category. This means that a person with this score is in the top 0.4% of the population ...Superior – 14 to 15. Very Superior – 16 to 20. Descriptors of performance for standard WISC score ranges are as follows: Below Average – standard score below 79. Low Average – standard score 80 to 89. Average – 90 to 109. High Average – 110 to 119. Superior – 120 to 129. Very Superior – above 130.Converting a Raven score to an IQ score is possible using a few short steps. Take the Raven Advanced Matrices test and find out your score on the test. For example, assume your raw score on the test was a 26. Determine your percentile rank in the Raven test. For example, according to one table published by the Prometheus Society, a score …The average NAI is a 100, while the maximum is a 160. The scores are normalized so that 68% of test-takers score in the 84-116 range. The other very helpful measurement of your child's ability is the percentile rank. The percentile rank is a number ranging from 1-99 that compares your student to a national sample of other students in his age ...132. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...brianna received an overall IQ score of 117 on the wechsler scale. this number means that brianna has scored ___ standard deviation(s) above the mean IQ score of ___. a. 2; 90 b. 1; 110 c. 2; 75 d. 1; 100. d. 1;100. an important problem with the cross-cultural use of IQ tests is that IQ tests measure abilities that: ...This means that a score of 117 on an IQ test with a standard deviation of 16 points is better than roughly 85.5% of test takers for this test. Flipping it around, a score of 117 on this test would put my score in the top 14.5% of test takers (i.e. 100% minus the percentile of 85.5% = 14.5%).For a simple random sample of adults, IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. A simple random sample of 13 statistics professors yields a standard deviation of s=7.2. A psychologist is quite sure that statistics professors have IQ scores that have a mean greater than 100.Superior – 14 to 15. Very Superior – 16 to 20. Descriptors of performance for standard WISC score ranges are as follows: Below Average – standard score below 79. Low Average – standard score 80 to 89. Average – 90 to 109. High Average – 110 to 119. Superior – 120 to 129. Very Superior – above 130.See Answer. Question: In a large population of adults, the mean IQ is 120 with a standard deviation of 23. Suppose 50 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal with a mean of and (b) The distribution of the sample mean IQ is ...Avg. IQ: 86. World ranking: #21. To discover the global ranking, click here. These numbers relative to the average IQ byCountryCode.ph came from a work carried out from 2002 to 2006 by Richard Lynn, a British Professor of Psychology, and Tatu Vanhanen, a Finnish Professor of Political Science, who conducted IQ studies in more than 80 countries.The .gov means it’s official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site. ... For example, Ruf proposed five levels of giftedness, with individuals with IQ scores between 117 and 129 being considered “moderately gifted”. Not too dissimilar to ...127. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...Question: Suppose the population of IQ scores in the town or city where you live is bell-shaped, with a mean of 102 and a standard deviation of 35. Describe the frequency curve for possible sample means that would result from random samples of 100 IQ scores. Using the Rule for Sample Means, we would expect the possible sample means to be bell-shaped, with a mean ofQuestion: 3. IQ scores have a population mean of 100, a population standard deviation of 15, and are approximatelyNormally distributed. Find the following probabilities. Sketch the normal distribution graph for each,showing the mean, lower end, and upper end of the desired region. Shade the region between the lowerand the upper ends.147. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...See Answer. Question: In a large population of adults, the mean IQ is 120 with a standard deviation of 23. Suppose 50 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal with a mean of and (b) The distribution of the sample mean IQ is ...IQ scores between 90 and 109 indicate a normal range or average intelligence. Individual adults usually score somewhere in between the 70-130 range, with 100 being the theoretical average. If you score above 130, then you would have a score higher than the average population, and below 70 would be lower than the average …Jun 14, 2023 · An IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores. A standard devation of 15 means 68% of the norm group has scored between 85 (100 – 15) and 115 (100 + 15). In other words, 68% of the norm group has a score ... The average IQ score is 100. Take this fast, free and accurate online IQ test to see how well you compare.IQ scores in a certain population are normally distributed with a mean of 99 and a standard deviation of 19. (Give your answers correct to four decimal places.) (a) Find the probability that a randomly selected person will have an IQ score between 98 and 108. (b) Find the probability that a randomly selected person will have an IQ score above 92.An IQ of 117 means you belong to the “Clever” group in the IQ classification, corresponding to 12.726% of the world’s population. I. What does an IQ of 117 mean? IQ 117 is quite common because 1 in 7 people will have this IQ level. This IQ 117 demonstrates a person's ability to perform a variety of tasks and manage everyday problems with ...It means that you possess cognitive skills and high intelligence. An IQ of 138 is said to be in the 99.4th percentile, which means only 0.06% of the population of world has higher IQ scores. So, yes, it is a gifted IQ score. There are many job positions that suit this IQ, but the best are those that match your cognitive.IQ test online a zdarma (50 otázek, 40 minut). Inteligenční kvocient změřili 120 449 lidí. ... IQ 117 Joseph Lagrange: Matematik, astronom: Itálie / Francie: IQ 185 Garry Kasparov: Šachista: Rusko: IQ 190 Madonna: Zpěvačka: USA: IQ 140 Nicole Kidman: Herec: USA: IQ 132 Paul Allen:Here are the IQ score ranges: 130 and above: High IQ. 90-110 (median plus or minus 10): Average IQ. 80-90: Below Average IQ. 70 to 80: Borderline. Below 70: May indicate intellectual deficiency or ...iq-117-mm. release date 2022. team. vladimir fil vladimir fil valeriА boiko valeriА boiko nikita ryazhko nikita ryazhko sq.m. 400m2. share. facebook facebook; twitter twitter; linkedin linkedin; like this case? let's talk about yoursAls begabt gilt laut IQ-Skala eine Person mit einem IQ von mindestens 121. Wird ein IQ von 130 erreicht, gilt man gemäß der IQ-Skala sogar als hochbegabt. Grundsätzlich sollte man jedoch beachten, dass sich gerade sehr hohe oder sehr niedrige Intelligenzquotienten nur schwer ganz präzise messen lassen.This is where our IQ percentile calculator can assist you in computing both the percentile of the population you are in and, correspondingly, the rarity of your score. For example, with an IQ of 125 you will be in the top 5% and hence in the 95th percentile of the population. This means that only 1 in 20 people selected at random from a large ...The intelligence quotient (IQ) of a randomly selected person follows a normal distribution with a mean of 100 and a standard deviation of 15. Use the scipy function norm and user input values for IQ1 and IQ2 to perform the following tasks:. Calculate the probability that a randomly selected person will have an IQ less than or equal to IQ1.; Calculate the probability that a randomly selected ...127. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...brianna received an overall IQ score of 117 on the wechsler scale. this number means that brianna has scored ___ standard deviation(s) above the mean IQ score of ___. a. 2; 90 b. 1; 110 c. 2; 75 d. 1; 100. d. 1;100. an important problem with the cross-cultural use of IQ tests is that IQ tests measure abilities that: ...An IQ of 130 is considered gifted, as the people with it perform better than 97.7% of their peers on an IQ test. With an IQ of 130, your cognition is highly developed, and you are an original, creative thinker who can succeed in any career you choose. An IQ of 130 usually thrives in mentally stimulating careers that challenge them and give them ...In a large population of adults, the mean IQ is 117 with a standard deviation of 21. Suppose 55 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normalis exactly normalmay or may not be normalis certainly skewed.Question: In a large population of adults, the mean IQ is 117 with a standard deviation of 16. Suppose 50 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places, if needed.)An IQ test has a mean of 106 and a standard deviation of 5. Which is more unusual, an IQ of 96 or an 10 of 117? Select the correct choice below and, if necessary, fill in the answer blixes to complete your choice. for an IQ of 117 O A. ... An IQ of 117 is more unusual because its corresponding z-score, is further from 0 than the corresponding 2 ...Oct 19, 2020 · An IQ test score can provide some information about your overall intelligence, but what does your IQ score really mean? Learn about IQ score ranges, what's considered an average IQ score, and what the highest IQ score indicates. Since the average IQ is said to be 100, hence anything above 100 is considered as above average and below 100 as below average. IQ below 70 is taken as that of mentally challenged person. IQ above 140 is generally considered as that of a genius. We already know that IQ = Mental Age/Chronological Age X 100. Hence, the normal or average IQ …An IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores. A standard devation of 15 means 68% of the norm group has scored between 85 (100 - 15) and 115 (100 + 15). In other words, 68% of the norm group has a score ...An unsettling classroom experience near the start of his second year in the Stanford Graduate School of Business MBA Program caused a personal crisis for Shirzad Chamine and led hi...A score of 116 or more is considered above average. A score of 130 or higher signals a high IQ. Membership in Mensa, the High IQ society, includes people who score in the top 2 …78. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...Jan 18, 2024 · In simple words, this means there are a lot of "normies", a few geniuses, and a few intellectually disabled people in a standard population. If we apply the empirical rule to IQ distribution, we can say that 68% of people have an IQ between 85 and 115; 95% - between 70 and 130; and 99.7% - between 55 and 145. Are you curious about your intellectual capabilities? Do you want to understand your true intelligence and uncover your hidden potential? Look no further than a free IQ test. With ...Recap. The average intelligence quotient (IQ) is between 85 and 115. But this number can vary between countries, states, and even geographical regions. IQ …In a large population of adults, the mean IQ is 117 with a standard deviation of 17. Suppose 55 adults are randomly selected for a market research campaign (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of 10 is approximately normal (6) The distribution of the sample ...8 Mar 2021 ... If an American born in the nineteen-thirties has an I.Q. of 100, the Flynn effect says that his children will have I.Q.s of 108, and his ...An IQ of 140 means that you are high above the average—in fact, looking at Stanford-Binet's categorization, it's clear that this IQ belongs to the gifted or very advanced category. In other words, you are mere steps away from being a genius. As such, an IQ of 140 is fairly rare, with approximately one in 262 people scoring this high.IQ can change to some degree over the course of childhood. In one longitudinal study, the mean IQ scores of tests at ages 17 and 18 were correlated at r = 0.86 with the mean scores of tests at ages five, six, and seven and at r = 0.96 [further explanation needed] with the mean scores of tests at ages 11, 12, and 13.The probability that a randomly selected adult has an IQ less than 124 is 1.2 (Type an integer or decimal rounded to four decimal places as needed.) Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standard deviation o = 20. Find the probability that a randomly selected adult has an IQ less than 124.Step 1. Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard deviation σ =15. Find the probability that a randomly selected adult has an IQ between 93 and 117 . Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ between ...Statistics and Probability questions and answers. Scores of an IQ test have a bell shaped distribution with a mean of 100 and a standard deviation of 17. Use the empirical rule to determine the following. a) What percentage of people has an IQ score between 49 and 151? b) What percentage of people has an IQ score less than 49 or greater than 151?This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: An IQ test has a mean of 102 and a standard deviation of 10.Which is more unusual, an IQ of 92 or an IQ of 119 ? Select the correct choice below and, if necessary, fill in the answer boxes to complete your. An ...The entry score for An IQ of 124 is needed to become a member of the International High IQ Society. This is the first entry-point score into high IQ societies. Around 2% of the population has an IQ greater than 130 which is 'gifted' intelligence. This is an IQ of 2 standard deviations from the average IQ. This is Mensa standard - the IQ ...An IQ score is calculated based on a person's mental age (the level at which they function mentally) and their chronological age (their actual age). Average IQ for a 15-Year-Old: 100. IQ scores are usually scaled to a mean of 100 and a standard deviation of 15. This means that an IQ of 100 is considered average, regardless of age.I have a professionally tested IQ of 117 and I'm data scientist. Don't let internet IQ padding fool you. 150 is absurdly high, in the realm of Einstein, Musk, and Steve Jobs. There is no way that is the minimum for any entry level position. With an IQ of 117 you are smarter than 90% of the population. You can do virtually anything.We promise that by the end of this article, you'll have a clearer understanding of this intriguing topic. To answer your query concisely: the average IQ score for a 14-year-old is around 100. IQ scores are normalized for age, which means that this average holds true regardless of the age group. This is a baseline score designed by IQ testing ...An IQ score of 115 means performance one standard deviation above the mean, while a score of 85 means performance one standard deviation below the mean, and so on. This "deviation IQ" method is now used for standard scoring of all IQ tests in large part because they allow a consistent definition of IQ for both children and adults.In a large population of adults, the mean IQ is 117 with a standard deviation of 21. Suppose 55 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normalis exactly normalmay or may not be normalis certainly skewed.Your IQ will help identify strengths and weaknesses in the aspects of intelligence our test measures. Your score will reflect where you lie compared to others in your age group. IQ tests are standardized to a median score of 100 and a deviation of 15. This means the most common score is 100 and 2/3rds of test takers score between 85 and 115.iq-117-mm Miami, Florida USA IQOSA
In general, an IQ score is defined with a median and mean of 100. Scores above 130 are labeled as above average or “very superior,” while scores under 70 would be considered below average or .... Lagina brothers age
The .gov means it’s official. ... The effects of aging and IQ on performance were examined in four memory tasks: item recognition, associative recognition, cued recall, and free recall. ... 2006; 32:101–117. [PMC free article] [Google Scholar]127. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the intelligence test. Or the level of the person for which you are consulting that IQ score for that matter. The IQ is always the result of a comparison with the average test result that was achieved by the people who ...An IQ Test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation of 15 means, 68% of ...This means that a score of 117 on an IQ test with a standard deviation of 16 points is better than roughly 85.5% of test takers for this test. Flipping it around, a score of 117 on this test would put my score in the top 14.5% of test takers (i.e. 100% minus the percentile of 85.5% = 14.5%).Meaning of IQ. 85 to 115 - Two thirds of us have an IQ in this range: the ’average’ IQ is 100. Over 115 - Only a third of people have an IQ this high. Over 120 - Only 9% of people have an IQ ...Treatment. When C-reactive protein (CRP) is high, it's a sign of inflammation in the body. While there is no widely accepted definition of "normal" CRP levels, values above 1 milligram per liter are generally considered to be high. Having elevated CRP levels over time is associated with an increased risk of cardiovascular disease.Table 5.4.1 5.4. 1. The graph above shows the standard normal distribution (with the mean 0). Each decimal number in the table represents the probability (percentage) that a data value is between 0 and the corresponding z z -value. For instance, about 34% of all data values lie between z z =0 (mean) and z z =1.0.117. The IQ score is the level of intelligence that you have been assigned according to the score that you achieved in the …The I.Q.'s are expressed on a scale with a general population mean of 100 and standard deviation of 15. They refer to scores on adult tests only, by adult norms. The exact cut-offs for the ranges are arbitrary, and one should realize that functioning may depend on more than I.Q. alone.Step 1. In a large population of adults, the mean IQ is 118 with a standard deviation of 20. Suppose 50 adults are randomly selected for a market research Campaign (Round to 2 decimal places for all z values and round all other answers to 4 decimal places, if needed) (a) The distribution of 10 is approximately normal (b) The distribution of the ... Marcel's IQ score is a 117 which means his IQ score is approximately and more. Study with Quizlet and memorize flashcards containing terms like A common finding among the childhoods of creative individuals includes, According to Sternberg's theory of successful intelligence, the three key abilities needed are, As part of an evaluation, a school ... On August 16, 1996, two men, Daryl Atkins and William Jones, robbed, kidnapped, and then shot and killed Eric Nesbitt, a local airman from the U.S. Air Force. A clinical psychologist evaluated Atkins and testified at the trial that Atkins had an IQ of 59. The mean IQ score is 100.Memory IQ 117. Verbal IQ 115. Spatial IQ 132. VM: 49 / 85. V: 20 / 34. MR: 16 / 17. EM: 20 / 26. A: 10 / 27. CP: 11 / 18. Score Interpretation. The idea with IQ scores is to allow comparisons across different tests and to the general population. So scores are converted from raw scores to a new scale where the average score in the population is ...Nov 5, 2023 · 70-79. Borderline Impaired. Under 70. Impaired. So 118 falls under the "high average" or sometimes "superior intelligence" range – better than typical intellect but short of true genius. It means someone with a 118 IQ probably: Picked up new concepts quickly in school. Has an excellent vocabulary and verbal ability. SELF-MADE MILLIONAIRES: Mean IQ of 118 (U.S. norms); IQ 117 (U.S. white norms) A house fit for a millionaire. Image found here. Median financial success: 99th percentile of Americans in their 50s (normalized Z = +2.33) ... So that means the high IQ group has 1 chance out of 300 of becoming a decabillionnaire. That doesn’t mean that …They refer to scores on adult tests only, by adult norms.The intelligence quotient (iq) is a metric scale used to gauge an individual's cognitive capability in comparison to the general population.This means that a score of 117 on an iq test with a standard deviation of 16 points is better than roughly 85.5% of test takers for this test.Step 1. In a large population of adults, the mean IQ is 118 with a standard deviation of 20. Suppose 50 adults are randomly selected for a market research Campaign (Round to 2 decimal places for all z values and round all other answers to 4 decimal places, if needed) (a) The distribution of 10 is approximately normal (b) The distribution of the ...The average IQ is 100, with a standard deviation of 15 points. This means about 68% of people score between 85 and 115 on IQ tests. Scores under 70 are considered extremely low – falling more than two standard deviations below the mean. Specifically, an IQ of 70 places someone in the bottom 2% of intelligence quotients among the population.Question: In a large population of adults, the mean IQ is 123 with a standard deviation of 15. Suppose 45 adults are randomly selected for a market research campaign. (Round to 2 decimal places for all z-values and round all other answers to 4 decimal places, if needed.) (a) The distribution of IQ is approximately normal (b) The distribution of ....
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