Question

Events A and B are mutually exclusive.
Also, P(A) = 0.12 and P(B) = 0.25.

What is P(A or B)?

A.
0.03

B.
0.25

C.
0.13

D.
0.37

Answer 1

D.0.37

Answer 2

P(AUB)= P(A)+P(B)-P(AnB)

Answer 3

If A and B are mutually exclusive, then p(A and B) = 0.
So
p(A or B) = p(A) + p(B) - p(A and B) = 0.12 + 0.25 - 0 = 0.37
Hope that helps.

Answer 4

it does, thanks