Answered: he IQs of 55 applicants to a call…

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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1. The IQs of 55 applicants to a call center are approximately normally distributed with a mean of 115 and a standard deviation of 12. If the call center requires an IQ of at least 100, how many of these applicants will be rejected on this basis? 2. if the standard deviation is zero, which of the following is always true? choose: The deviations from the mean are equal. The distribution is heterogeneous. All scores are equal. None of the above THANKS VERY MUCH

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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