Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). For a randomly selected adult, find the indicated probability or IQ score. Round IQ scores to the nearest whole number. (Hint: Draw a graph in each case.) Find the probability of an IQ less than 85.
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Step 1: Draw a normal distribution curve with mean 100 and standard deviation 15. Show more…
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Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). For a randomly selected adult, find the indicated probability or IQ score. Round IQ scores to the nearest whole number. (Hint: Draw a graph in each case.) Find the probability that a randomly selected adult has an IQ between 90 and 110 (referred to as the normal range).
Normal Probability Distributions
Applications of Normal Distributions
Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). For a randomly selected adult, find the indicated probability or IQ score. Round IQ scores to the nearest whole number. (Hint: Draw a graph in each case.) Find the probability that a randomly selected adult has an IQ between 110 and 120 (referred to as bright normal).
Normal Probability Distribution
Shubham S.
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