if that is the case, P (A and B) cannot 0, and P (A or B)

if that is the case, P (A and B) cannot 0, and P (A or B)

所有跟贴·加跟贴·新语丝读书论坛

送交者: steven 于 2010-04-21, 20:12:46:

回答: 那如果明天各有0.99机会坏掉，那么至少有一个坏掉的机会就几乎是2？由 whoami 于 2010-04-21, 19:18:08:

= P(A) + P(B) - P(A and B).