The event A has probability 0.13 of occurring; and the event B has probability 0.34 of occurring. Also it is known that P(A and B) = 0.1. Calculate P(A or B) to two decimal places.

It is known that P(A) = 0.3, P(B) = 0.65, P(A and B) = 0.15 and P(A or B) = 0.8. Given that A occurs, what is the probability that B also occurs

We found that P(A and B) = 0.15. Since the probability that both events happen at the same time is not 0, it means that events A and B have some outcomes in common. Therefore, the events A and B are not mutually exclusive.To compute P(A or B) means that we wish to find the probability that either A happened or B happened. Since the events are not mutually exclusive, we can apply the general addition rule for events. Recall that P(A) = 0.3 and P(B) = 0.5.P(A or B)  =  P(A) + P(B) − P(A and B) =  0.3 + 0.5 −  =

For two events A and B, P(A) = 0.4, P(B) = 0.7 and P(A  B) = 0.2. Find P(A  B)._______________________________________________________________________13 For two events A and B, P(A) = 0.4, P(B) = 0.7 and P(A  B) = 0.3. Find P(A  B)._______________________________________________________________________14 For two events G and H, P(G) = 0.5, P(G  H) = 0.2 and P(G  H) = 0.6. Find P(H).

An event A has a probability 0.61 of occurring. Calculate the probability of A not occurring to two decimal places.

Given that P(A) = 0.6, P(B) = 0 .15, and P(A OR B) = 0.7, what is P(A AND B)?