12th Edition

ISBN: 9780321836960

Author: Mario F. Triola

Publisher: PEARSON

Concept explainers

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…

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Textbook Question

Chapter 2, Problem 9CQQ

What characteristic of a data set can be better understood by constructing a histogram?

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Chapter 2, Problem 8CQQ

Chapter 2, Problem 10CQQ

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Chapter 2 Solutions

Elementary Statistics

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What characteristic of a data set can be better understood by constructing a histogram?

Solution Summary: The author explains that a histogram can be used to identify the distribution of data preferably to find whether it is distributed normally or not.

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Chapter 2 Solutions