Question

Find P(A or B), if events A and B are overlapping.
P(A) = 11/18
P(B) = 5/18
p(A and B) = 2/18

Answer 1

The answer is 7/9

P(A or B) = P(A) + P(B) - P(A and B)
P(A) = 11/18
P(B) = 5/18
p(A and B) = 2/18
P(A or B)  = 11/18 + 5/18 - 2/18 = (11 + 5 - 2)/18 = 14/18 = 7/9

Answer 2

Answer:

I believe it is 7\9