mat2371最后一题是再说什么，没看懂

[超级大马甲]

有同学做完了吗？最后一题到底在讲什么，没看懂~~

 

[Stalwart]

最初由 LBJN 发布
有同学做完了吗？最后一题到底在讲什么，没看懂~~

you mean 2.3.6, don't you? that's conditional probability.

let event A = { at least three kings} (means 3 or 4 kings), event B = {at least two kings} (means 2, or 3 or 4 kings)

so A is a subset of B, therefore A intersection B = A

P(A|B) = P(A)/P(B)

what you need to do is to find the probabilities of event A and B.

seems too late, eh? today is due date.

good luck