Answered: 37) Assume that adults have IQ scores…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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37) Assume that adults have IQ scores that are normally distributed with a mean of 98.2 and a standard deviation of 17.8. Find the probability that a randomly selected adult has an IQ greater than 118.1. (Hint: Draw a graph.)

The probability that a randomly selected adult from this group has an IQ greater than 118.1 is ___

(Round to four decimal places as needed.)

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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