Assume that adults have IQ scores that are normally distributedwith a mean of 100 and a standard deviation of 15. Round IQ scoresto the nearest whole number.a) Find the probability that a randomly selected adult has an IQbetween 110 and 120.b) Find P90.

The random variable X is the IQ score of adults It is normally distributed. The mean is 100. The…

Answered: Assume that adults have IQ scores that…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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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. Round IQ scores to the nearest whole number. a) Find the probability that a randomly selected adult has an IQ between 110 and 120. b) Find P90.