4 cards are drawn at random from a pack of 52
cards. Find the probability that all are clubs.
Answers
Step-by-step explanation:
Four cards are drawn at random from a pack of 52 cards. What is the probability of getting all four cards of the same suit?
Total No. Of cards =52
No.Of cards for each suit = 13
Total types Of French suit = 4(hearts,spades, diamonds,clubs)
Prob. = Conditional case /total case
For this conditional case of selecting all four same suit,it can be either hearts or spades or clubs or diamonds
So Total no. Of conditional case= no. of case of selecting all four cards of hearts suit +no.of case of selecting all four cards of spades suit +no.of case of selecting all four cards of clubs suit + no. of case of selecting all four cards of diamonds suit.
= 13C4+13C4+13C4+ 13C4
=4*(13C4)=2860
Total no. of case= 52C4=270725
So, probability of getting all four cards of the same suit=2860/270725