Mathematics for IGCSE & O level - Probability (Section 2 - No. 4)
If the first match is lost (probability 0.4), what is the probability they win one of the first two matches, given the following: The probability of winning the second match is 0.7 if the first match is won, otherwise it's 0.4?
0.6
0.4
0.84
0.28
설명
(0.4 * 0.7) + (0.6 * 0.4) = 0.28 + 0.24 = 0.52.