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RE: 如果体检癌症检测成阳性(准确率为90%)……怎么办

in #cn6 years ago (edited)

更正两个地方
2、检测的漏诊率20%(也就是检测呈阴性但是没有癌症P( + | -C))
改为
检测的漏诊率20%(也就是检测呈阴性但是没有癌症P( + | -C))

另外公式
P(c | +) = P(+|c)* P(c)/P(+) = P(+|c)* P(c)/( P(+|c)* P(c) + P(-|c)* P(c))
改为
P(c | +) = P(+|c)* P(c)/P(+) = P(+|c)* P(c)/( P(+|c)* P(c) + P(+|-c)* P(-c))

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