P = 0.2 * (1 - 0.15) / (0.2 * (1 - 0.15) + 0.45 * (1 - 0.3) + 0.35 * (1 - 0.25)) = 68/299 = 22.74%
↧
P = 0.2 * (1 - 0.15) / (0.2 * (1 - 0.15) + 0.45 * (1 - 0.3) + 0.35 * (1 - 0.25)) = 68/299 = 22.74%