Paper 3 · Statistics3.2 Probability
The two-way table classifies 368 station-days from May to October by station and by whether any rain was measured (a trace counts as rain).
| Station | Rain | No rain | Total |
|---|---|---|---|
| Camborne | 71 | 113 | 184 |
| Heathrow | 52 | 132 | 184 |
| Total | 123 | 245 | 368 |
(a)
One of these days is chosen at random. Write down the probability that it rained.
1 mark