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according to investment digest the mean of the annual return for common stock from 1926 to 1992 was 16.5% and the standard deviation of the
according to investment digest the mean of the annual return for common stock from 1926 to 1992 was 16.5% and the standard deviation of the annual return was 19%.what is the probability that the stock return are less than 18.5%?
ANSWERS:
.468
.542
.510
.490
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