Refer to the data set in Exercise 2.27. Exercise 2.27 A group of 70 students were asked

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Refer to the data set in Exercise 2.27.
Exercise 2.27
A group of 70 students were asked to record the last digit of their social security number.
Refer to the data set in Exercise 2.27.Exercise 2.27A group

a. Find the percentage of measurements in the intervals ± s, ± 2s, and ± 3s.
b. How do the percentages obtained in part a compare with those given by the Empirical Rule? Should they be approximately the same? Explain.

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Introduction To Probability And Statistics

ISBN: 9781133103752

14th Edition

Authors: William Mendenhall, Robert Beaver, Barbara Beaver

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