Question

draw of cards from a pack of card if: (i) in a three cards combination find the probability of a player having two black 7's. (ii) in a four cards combination, find the probability of a player having exactly three​

Answer 1

Answer:

There are total 52 cards , 26 Black ,26 red

Now total ways of selecting 6 card out of 52 cards is = 52C6

total ways of selecting 3 card out of 26 Black cards is = 26C3

total ways of selecting 3 card out of 26 Red cards is = 26C3

So probability = (26C3*26C3)/52C6

=(2600*2600)/20358520

=0.332