Consider the following grouped sample data: Values Frequency 10 to under 30 26 30 to under 50

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Consider the following grouped sample data:

Values Frequency 10 to under 30 26 30 to under 50 35 50 to under 70 51 70 to under 90 33

a. Calculate the approximate mean of these sample data.

b. Calculate the approximate standard deviation of these sample data.

Applications AppendixLO1

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Business Statistics

ISBN: 9780133852288

2nd Edition

Authors: Robert A Donnelly, Robert Donnelly Jr

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