Please help with this:
Suppose in recent years, it has only rained an average of 5 days a year. The weather forecast, which has an accuracy of 90%, predicts rain for tomorrow. What is the probability of rain tomorrow?
A: <1%
B: between 5 and 15%
C: between 15 and 80%
D: between 80 and 90%
E: > 90%
Thank you!