14th Edition

ISBN: 9781323907733

Author: Barnett

Publisher: INTER PEAR

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Textbook Question

Chapter 10.5, Problem 15E

In Problems 15-20, given a normal distribution with mean 15 and standard deviation 10 , find the number of standard deviations each measurement is from the mean. Express the answer as a positive number.

− 22

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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Chapter 10.5, Problem 14E

Chapter 10.5, Problem 16E

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In Problems 15-20, given a normal distribution with mean 15 and standard deviation 10 , find the number of standard deviations each measurement is from the mean. Express the answer as a positive number. − 22

Solution Summary: The author calculates the number of standard deviations from the mean -15 and the deviation 10.

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