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Description: A large company has many employees and the annual salaries of those employees follow a normal distribution with a mean of $70,000 and a standard deviation of $12,000. What percentage of employees make less than the mean? b. What percentage of employe

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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A large company has many employees and the annual salaries of those employees follow a normal distribution with a mean of $70,000 and a standard deviation of $12,000.

What percentage of employees make less than the mean?

b. What percentage of employees make between $46,000 and $58,000?

What percentage of employees make greater than $58,000?

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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