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In the last quarter of 2007, a group of 64 mutual funds had a mean return of 2.8% with a standard deviation of 6.5% If a norm
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solution :- l = 2.8 % - 6.5 a) - 16.7%. = 2.8 - 346.5 = Plac-167) = 1.15 Below .3 .sd of mon. 1. b) 2.81 = le or less P/X 22.

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