Question

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

Answer 1

Answer:

78%

Step-by-step 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) = $\frac{P(RW)}{P(R)} =\frac{0.7}{0.9} =0.78$

The correct answer is B) 78%