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Question: assume the average age of an mba student is 313...

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Assume the average age of an MBA student is 31.3 years old with a standard deviation of 2.3 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 93% of the students around the mean.

​e) Using​ Chebyshev's Theorem, determine the range of ages that will include at least 78​% of the students around the mean.

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