Answered: In one country, the IQ of adults is an…

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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In one country, the IQ of adults is an approximately normally distributed random variable with an expected value of 100 and a standard deviation of 14.8. A person is accepted as a member of a smart club if his IQ is better than 96% of adults in this state. Calculate in R with the function qnorm(), which is the lowest IQ as an integer with which a person can be accepted into the smart club. Enter this integer as the answer. This is not Mensa

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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