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What was the range (best approximation) in which at least 75% of the data values fell?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

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?

a)$4.93-$5.11 b)$4.75-$5.39. c)$4.98-$5.06. d)$4.84-$5.20

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