00:01
So, in this example, we are asked to find the probability of a queen, of drawing a queen, or drawing a spade.
00:16
So, let's remember, there are 52 cards.
00:19
There's going to be 13 cards of each different suit.
00:23
So it'll be 13 spades, 13 diamonds, 13, so on, and so on.
00:27
And there's also going to be four queens.
00:30
There's going to be a queen of spades, a queen of hearts, a queen of diamonds, and a queen of clubs.
00:34
But we had to remember when we count that queen of spades, it's also going to be a queen of spades.
00:37
Be counted as a spade when we first count them.
00:40
So, since there is a queen that is a spade, they are not mutually exclusive, they are inclusive.
00:49
So we had to be careful when counting the probability of this and to make sure that we're not double counting...