If P(A)=0.2 and P(A and B)=0.12, and P(A or B)=0.68, what is P(B)?

Question

Help please

0.6

0.08

0.8

0.06

Answer 1

P(A v B) = P(A) + P(B) - P(A ^ B)

Probability of A or B = probability of A plus Probability of B minus Probability of A and B

.68 = .2 + P(B) - .12

P(B) = .68 - .2 + .12 = .6