Essay
The price-earnings ratios of a sample of stocks have a mean value of 13.5 and a standard deviation of 2.If the ratios have a bell shaped distribution,what can we say about the proportion of ratios that fall between
a.11.5 and 15.5?
b.9.5 and 17.5?
c.7.5 and 19.5?
Correct Answer:
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a. The interval contains approximately 6...View Answer
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