Question
Consider a population of 1024 mutual funds that primarily invest in large companies. You have determined that , the mean one-year total percentage return achieved
Consider a population of 1024 mutual funds that primarily invest in large companies. You have determined that , the mean one-year total percentage return achieved by all the funds, is 8.10 and that , the standard deviation, is 3.25. Complete (a) through (c).
a.
According to the empirical rule, what percentage of these funds is expected to be within 3 standard deviations of the mean?
b.
According to the Chebyshev rule, what percentage of these funds are expected to be within 4 standard deviations of the mean? (Round to two decimal places, correctly as needed.)
c.
According to the Chebyshev rule, at least 96% of these funds are expected to have one-year total returns between what two amounts?
Between _____ and _____ . (Round to two decimal places as needed.)
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