Eamings per share. The earnings per share (in dollars) for 12 companies selected at random from the list of Fortune 500 companies are: 0.52 0.76 4.76 5.95 2.84 3.46 6.53 6.97 0.89 1.91 8.07 8.17 a. Find the mean of the earnings per share. $ (Type an integer or a decimal. Round to two decimal places.) b. Find the standard deviation of the eamings per share. $ (Type an integer or a decimal. Round to two decimal places.)

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