The correct choice of answer is B. 71%.
p(A/B) = 0.50/0.70 equal to 0.7143
In order for us to make this calculation we will have to use the 70% chance of rain and the 50% chance of wind and rain. We take both probabilities and divide them in the following manner: 50/70 = 0.71. Therefore the probability that it is windy, given that it is rainy is 71%.
I hope it helps, Regards.
Conditional Probability: P(A and B)
P(A and B): 0.5
=0.71428... (x 100)
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