00:01
In this question, when given a standard debt of well -sufford, 52 plain cards, a poker hand consists of five cards dealt from the deck.
00:09
Now, the sequence that these cards were dealt is disregarded.
00:13
That means the order of which the cards are dealt is not important.
00:21
In part a, we want to find probability of the five cards in there having three kings or two queens.
00:30
So take note that the five cards are dealt with out.
00:34
Replacement and that the order of the selection of these five cards are not important.
00:51
Without replacement order not important we will be using combination.
01:00
That's the one with the c.
01:03
So probability of three kings, all.
01:09
Now all in probability is plus, set notation is union, n is times set notation is intercept.
01:21
So all will be union, two queens.
01:26
There is two queens.
01:30
For union, there's a formula.
01:32
There'll be probability of three kings plus probability of two queens, minus probability of three kings intersect two queen.
01:44
Now probability of getting three kings...