Assume the average age of an MBA student is 31.6 years old with a standard deviation of 2.8 years.

a. Determine the coefficient of variation.

b. Calculate the z-score for an MBA student who is 28 years old.

c. Using the empirical rule, determine the range of ages that will include 99.7% of the students around the mean.

d. Using Chebyshev’s Theorem, determine the range of ages that will include at least 94% of the students around the mean.

e. Using Chebyshev’s Theorem, determine the range of ages that will include at least 80% of the students around the mean.

AppendixLO1