Concept explainers
The data can be described by the following mathematical models:
Median weekly earnings of male college graduates = M
Median weekly earning of female college graduates = F
In each mathematical model, n represents the number of years after 2000. Use this information to solve Exercises 99−100.
99.
a. Use the appropriate formula to find the median weekly earnings of male college graduates in 2010. Does this value underestimate or overestimate the earnings shown by the bar graph? By how much?
b. Use the appropriate formula to find the median weekly earnings of female college graduates in 2010 Does this value underestimate or overestimate the earnings shown by the bar graph? By how much?
c. Use the values given by the mathematical models in parts (a) and (b) to find the difference between men’s weekly earnings and women’s weekly earnings in 2010. How does this compare with the difference in earnings shown by the graph?
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