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according to morningstar, in their population of 1000 mutual funds,the mean one year total return is 7% and the standard deviation is 10%. histogram is
according to morningstar, in their population of 1000 mutual funds,the mean one year total return is 7% and the standard deviation is 10%. histogram is reasonably bell shaped and symmetric.
A. about how many of these funds expected to have one year returns within +- 1 standard deviation of the mean?
B. approximately 95% of these funds are expected to have one year total returns between what 2 percentages
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