| Value | Frequency |
| 1 | a |
| 2 | 2a |
| 3 | 3a |
| 4 | 2a |
| 5 | a |
The frequency distribution above summarizes a set of data, where a is a positive integer. How much greater is the mean of the set of data than the median?
| Value | Frequency |
| 1 | a |
| 2 | 2a |
| 3 | 3a |
| 4 | 2a |
| 5 | a |
The frequency distribution above summarizes a set of data, where a is a positive integer. How much greater is the mean of the set of data than the median?