Each year America.EdU ranks the best paying college degrees in America. The following data show the median starting salary, the mid-career salary, and the percentage increase from starting salary to mid-career salary for the 20 college degrees with the highest midcareer salary (America.EdU website, August 29, 2013).

a. Using a class width of 10, construct a histogram for the percentage increase in the starting salary.
b. Comment on the shape of the distribution.
c. Develop a stem-and-leaf display for the percentage increase in the starting salary.
d. What are the primary advantages of the stem-and-leaf display as compared to the histogram?

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Degree Aerospace engineering Applied mathematics Biomedical engineering Chemical engineering Civil engineering Computer engineering Computer science Starting Salary 59,400 56,400 54,800 64,800 53,500 61,200 56,200 Mid-Career Salary 108,000 101,000 101,000 108,000 93,400 87,700 97,700 % Increase 82 79 84 67 75 43 74 Degree Mid-Career Salary Starting Salary 50,400 48,800 60,800 47,500 41,500 49,300 50,900 46,400 63,900 93,000 50,700 56,700 50,000 % Increase Construction management Economics Electrical engineering Finance Government Information systems Management info. systems Mathematics Nuclear engineering Petroleum engineering Physics Software engineering Statistics 87,000 97,800 104,000 91,500 88,300 87,100 100 71 93 113 88,300 104,000 157,000 99,600 91,300 93,400 61 87