Using the data in Figure 6a, calculate the mean total storm rainfall.
Give your answer to one decimal place.
You must show all your workings in the space below.
Figure 6a: Rainfall data collected by a group of students during a severe storm event
| Rainfall data (mm) | |||
|---|---|---|---|
| Average monthly rainfall | Highest 1-hour intensity during storm | Total storm rainfall | |
| Site 1 | 45.2 | 18.4 | 125.4 |
| Site 2 | 41.8 | 15.2 | 97.8 |
| Site 3 | 46.5 | 22.1 | 142.1 |
| Site 4 | 48.0 | 12.0 | 78.5 |
| Site 5 | 44.3 | 16.5 | 118.5 |
| Mean across sites | 45.16 | 16.84 | ? |
