Question

A 5-card hand is dealt from a deck of 52 cards. What is the probability that exactly 2 cards are kings?

Answer 1

4C2 . 48C3 /52C5

Answer 2

first two kings out of 52 cards, then from remaining # cards and then 5 cards out of 52

Answer 3

Why did u do 48C3?

Answer 4

@ribhu

Answer 5

4 cards would be kings and we already took 2 kings out of 4 kings, and from the remaining two we can not choose.

Answer 6

But why do you need to do that? i did 4C2/52C5, which is wrong.

Answer 7

because we have to choose 5 cards, and 2 must be kings.

Answer 8

u did for only two cards, u need to choose three more but from cards other than kings.

Answer 9

Ohhh okay. So do i multiply 48C3 by the 4C2?