since the combinations are mutually exclusive, the final probability is the sum of the probabilities of the three combinations. That is,
1/2 * 1/3 + 1/2 * 1/4 + 1/3 * 1/4
The probability of three independent events are 1/2,1/3,1/4 respectively. What's the probability that two of them will occur?
1 answer
1 answer