Question

Ok stats question. Suppose that 5 cards are drawn from a deck of 52 cards. For he following exercises, give both a reasoned expression and an answer.

A hand with two pairs is a hand like Q-Q-3-3-A.

a) How many two pair hands are there?
b) What is the probability of getting two pairs?

Answer 1

@dan815

Answer 2

Note that for part (b),
\[\text{probability of getting a specific hand}=\frac{\text{number of ways you can get that hand}}{\text{total number of possible hands}}\]

Answer 3

in 5 cards there is no pair,1 pair or 2 pairs.