Originally Posted by

**galactus** That means probability of A given B.

Suppose you draw a card from a deck. What's the probability it's a King?.

Well, you would have 4/52. But, if you didn't replace the card and drew another, what would be the probability of another King. 3/51.

See, the probability of the second King was changed due to the first card being drawn. A given B.

If you had replaced the first card and drew from a deck that had 52 cards instead of 51, it would'nt have been dependent on the other card. See?.

Does that make sense?.