6th Edition

ISBN: 9780134434681

Author: Tom Pirnot

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 14.4, Problem 4E

Assume that the distribution in Exercises 1 –6 has a mean of 10 and a standard deviation of 2. Use the 68-95-99.7 rule to find the percent of values in the distribution that we describe.

Below 8

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Chapter 14.4, Problem 3E

Chapter 14.4, Problem 5E

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Chapter 14 Solutions

Mathematics All Around (6th Edition)

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Assume that the distribution in Exercises 1 –6 has a mean of 10 and a standard deviation of 2. Use the 68-95-99.7 rule to find the percent of values in the distribution that we describe. Below 8

Solution Summary: The author explains the 68-95-99.7 rule to estimate how many values we expect to fall within 1, 2, or 3 standard deviations of the mean of normal distribution.

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Chapter 14 Solutions