Question

If there is a 90% chance of rain tomorrow and a 70% chance of wind and rain,

what is the probability that it is windy, given that it is rainy? Round your
answer to the nearest percent.

Answer 1

78%

Explanation:

the chance of rain

P(R) = 0.9

the chance of wind and rain

P(R∩ W) = 0.7

The probabilities of windy weather is

P(W) =
`(P(RW))/(P(R)) =(0.7)/(0.9) =0.78`

The correct answer is B) 78%