The formula that we would use is the probability of both over the probability of the rain only.
P[Wind and Rain ] / P [Rain] = 0.35 / 0.65 = 0.538 = 54%
The answer is A.
-18
1) Distribute the -6 to the parentheses
-4 - (6*7) - (-6*3)
2) Simplify
-4 - 42 + 18
-18
He didn't distribute 1/3 to x and 15 before solving
A-the data set is symmetrical
I think the answer is 1.97 hope it helps you