SOLUTION: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equals 20. Find the probability that a randomly selected
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Question 1115638: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equals 20. Find the probability that a randomly selected adult has an IQ between 85 and 125.
The probability that a randomly selected adult has an IQ between 85 and 125 is____.
(Type an integer or decimal rounded to four decimal places as needed.)
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
IQ between 85 and 125 is +-1 standard deviation away from the mean
68.2% of the population has an IQ between 85 and 125.
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