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爱吃草莓的葡萄2023-11-08 09:53:15
同学你好。可以的,解析中就写出了同学说的这种计算。“Another way to get the answer is: P(XY) = P(Y|X)P(X) = P(X|Y)P(Y). Hence P(Y) = P(Y|X)P(X)/P(X|Y) = 0.60 × 0.50/0.75 = 0.40.”
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