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Finding the mean and the standard deviation

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Please see attached doc for problem.

Earnings Per Share
The earnings per share (in dollars) for 12 companies selected at random from the list of Fortune 500 companies are

A. Find the mean of earnings per share. $__________
B. Find the standard deviation of earnings per share. $__________

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The mean and the standard deviation of a set of data is found. The solution is in a DOC file.

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