SOLUTION: The price-earnings (PE) ratios of a sample of stocks have a mean value of 14 and a standard deviation of 1.3. If the PE ratios have a bell shaped distribution, what percentage of P

Algebra ->  Probability-and-statistics -> SOLUTION: The price-earnings (PE) ratios of a sample of stocks have a mean value of 14 and a standard deviation of 1.3. If the PE ratios have a bell shaped distribution, what percentage of P      Log On


   



Question 780674: The price-earnings (PE) ratios of a sample of stocks have a mean value of 14 and a standard deviation of 1.3. If the PE ratios have a bell shaped distribution, what percentage of PE ratios that fall between:

A. 12.7 and 15.3.
Percentage =
B. 11.4 and 16.6.
Percentage=

C. 10.1 and 17.9.
Percentage =

Answer by stanbon(75887) About Me  (Show Source):
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The price-earnings (PE) ratios of a sample of stocks have a mean value of 14 and a standard deviation of 1.3. If the PE ratios have a bell shaped distribution, what percentage of PE ratios that fall between:
A. 12.7 and 15.3.
Percentage = 0.6827

B. 11.4 and 16.6.
Percentage= 0.9545
C. 10.1 and 17.9.
Percentage = 0.9973
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Cheers,
Stan H.