Essentials of Statistics Plus MyLab Statistics with Pearson eText - Access Card Package (5th Edition)

5th Edition

ISBN: 9780133864960

Author: Mario F. Triola

Publisher: PEARSON

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Textbook Question

Chapter 2.4, Problem 19BSC

Frequency Polygon. In Exercises 19 and 20, construct the frequency polygon.

19. Earthquake Magnitudes Use the frequency distribution from Exercise 23 in Section 2-2 to construct a frequency polygon. Applying a loose interpretation of the requirements for a normal distribution, do the magnitudes appear to be normally distributed? Why or why not?

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 2.4, Problem 18BSC

Chapter 2.4, Problem 20BSC

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Chapter 2 Solutions

Essentials of Statistics Plus MyLab Statistics with Pearson eText - Access Card Package (5th Edition)

Ch. 2.2 - Frequency Distribution Table 2-2 on page 45 is a...Ch. 2.2 - Relative Frequency Distribution After construction...Ch. 2.2 - Do You Believe? In a Harris Interactive survey,...Ch. 2.2 - Analyzing a Frequency Distribution The...Ch. 2.2 - In Exercises 5-10, identify the class width, class...Ch. 2.2 - In Exercises 5-10, identify the class width, class...Ch. 2.2 - In Exercises 5-10, identify the class width, class...Ch. 2.2 - In Exercises 5-10, identify the class width, class...Ch. 2.2 - In Exercises 5-10, identify the class width, class...Ch. 2.2 - In Exercises 5-10, identify the class width, class...

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Solution Summary: The author explains how to construct a Frequency Polygon for the magnitude of earthquakes using the MINITAB software.

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Chapter 2 Solutions