chenni wrote:
喝可口可樂的人占了7...(恕刪)
最多佔 35% 最少佔10%
推
s53148082001 wrote:
75%+35%
都超過100%了
腦筋急轉彎嗎??
s53148082001 wrote:
75%+35%都超過...(恕刪)
ucla-aba wrote:
that is the probability of the union of A and B is 1, ie., P(A. U B.) = 1.
Since
P(A. U B.) = P(A.) + P(B.) - P(A. B.) and P(A.) = .75 and P(B.) = .35,
it yields P(A. B.) = .1.