The table shows information about the numbers of shoes sold in a shop.
| Year | Quarter | Number of Shoes |
|---|---|---|
| 2010 | 1 | 255 |
| 2 | 309 | |
| 3 | 285 | |
| 4 | 243 | |
| 2011 | 1 | 294 |
| 2 | 330 |
Calculate the 4-point moving averages for this information.
Describe what the moving averages show about the trend in the numbers of shoes sold in the shop over this period of time.
