Please explain how you compute these answers for A,B,C.
Objective: Apply the empirical rule and the Chebyshev rule.
Consider a population of 1024 mutual funds that primarily invest in large companies You have determined that p, the mean one-year total percentage return achieved by all the funds, is 9.20 and that o, the standard deviation, is 1 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?
99.7 %
b. According to the Chebyshev rule, what percentage of these funds are expected to be within ±2 standard deviations of the mean?
75 % (Round to two decimal places as needed.)
c. According to the Chebyshev rule, at least 88.89% of these funds are expected to have one-year total returns between what two amounts?
Between 5.45 and 12.95 (Round to two decimal places as needed.)