1.9 Athletes’ salaries. Here is a small part of a data set that describes Major League Baseball players as of opening day of the 2015 season.
(a) What individuals does this data set describe?
(b) In addition to the player’s name, how many variables does the data set contain? Which of these variables take numerical values?
(c) What do you think are the units in which each of the numerical variables is expressed? For example, what does it mean to give Bryce Harper’s annual salary as 3,750? (Hint: The average annual salary of a Major League Baseball player on opening day 2015 was, with roundoff, $4,250,000.)
| Player | Team | Position | Age | Salary |
|---|---|---|---|---|
| ⋮ | ||||
| Kershaw, Clayton | Dodgers | Pitcher | 27 | 31,000 |
| Harper, Bryce | Nationals | Outfielder | 22 | 3,750 |
| Sabathia, C. C. | Yankees | Pitcher | 34 | 24,286 |
| Rodriguez, Alex | Yankees | Designated Hitter | 39 | 22,000 |
| ⋮ |