Refer to the Forbes list of the 40 best-paid chief executive officers, Exercise. The salary and age of each CEO are saved in the FORBES40 file.
a. Use a graph to portray the relationship between a CEO’s salary and age. Do you detect a trend?
b. According to Chebyshev’s rule, what percentage of the age measurements would you expect to find in the intervals x-bar ± .75s, x-bar ± 2.5s, and x-bar ± 4s?
c. What percentage of the age measurements actually fall into the intervals of part b? Compare your results with those of part b.
d. Repeat parts b and c for salary.