1.4.32medium一级题目发布者: ai-batch题干设 P(A)=pP(A)=pP(A)=p，P(B)=1−εP(B)=1-\varepsilonP(B)=1−ε，证明： p−ε1−ε≤P(A∣B)≤p1−ε.\frac{p - \varepsilon}{1 - \varepsilon} \le P(A \mid B) \le \frac{p}{1 - \varepsilon}.1−εp−ε≤P(A∣B)≤1−εp.