Excursions In Modern Mathematics, 9th Edition

9th Edition

ISBN: 9780134494142

Author: Tannenbaum

Publisher: PEARSON

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Textbook Question

Chapter 17, Problem 7E

Consider a normal distribution with first quartile Q 1 = 432.5 points and third quartile Q 3 = 567.5 points.

a. Find the mean μ of the distribution.

b. Find the standard deviation σ of the distribution rounded to the nearest point.

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 17, Problem 6E

Chapter 17, Problem 8E

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Chapter 17 Solutions

Excursions In Modern Mathematics, 9th Edition

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Consider a normal distribution with first quartile Q 1 = 432.5 points and third quartile Q 3 = 567.5 points. a. Find the mean μ of the distribution. b. Find the standard deviation σ of the distribution rounded to the nearest point.

Solution Summary: The author calculates the mean mu of the given distribution, which is 500 points.

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Chapter 17 Solutions