Question

Events A and B are mutually exclusive. Suppose event A occurs with probability 0.26 and event B occurs with probability 0.29. If event A or event B occurs cor both), what is the probability that A occurs?

Answer 1

# Given that PCA)= 0.26 PCB) = 0.29 and PLANB) = 0 (i events are exclusive) We need to find PCALAUB) we know that P CAUB) = PLAIT PCB)- PLANB) = 0.26+0.29 - 0 0.55 So PCAN CAUB)) PCA) PCA I AUB) = P (AUB) PCAUB) 0.26 0.55 0.4727 = PCA AUB) = 0.4727