The price earnings PE ratios of a sample of stocks have a mean value of...
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The price earnings PE ratios of a sample of stocks have a mean value of 12 5 and a standard deviation of 1 7 If the PE ratios have a bell shaped distribution use the 68 95 99 7 Rule to estimate the percentage of PE ratios that fall between A 10 8 and 14 2 Percentage B 7 4 and 17 6 Percentage C 9 1 and 15 9 Percentage artial credit on this problem
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