In a dance competition, the scores (ranging from 1 to 8) awarded to two groups, Team Alpha and Team Beta, are summarized below:
| Score | Alpha | Beta |
|---|---|---|
| 1 | 0 | 1 |
| 2 | 2 | 0 |
| 3 | 0 | 2 |
| 4 | 1 | 1 |
| 5 | 2 | 2 |
| 6 | 1 | 2 |
| 7 | 2 | 0 |
| 8 | 0 | 2 |
| Total | 8 | 10 |
What is the difference between the median score of Team Beta and the median score of Team Alpha?