A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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in 1975 a sample of the hourly wages of employees who work in restaurants in Los Angeles has a mean of $5.02 and a standard deviation of $.09.  What was the range (best approximation) in which at least 75% of the data values fell?

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