p = 0.99 * 0.005 / (0.99*0.005 + 0.01*0.995) = 0.3322
好像沒有什麽難度啊。
看來很可能我學過但忘了。
p = 0.99 * 0.005 / (0.99*0.005 + 0.01*0.995) = 0.3322
好像沒有什麽難度啊。
看來很可能我學過但忘了。
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