step 1
Find out the total outcomes
Find out the combination 52C4
[tex]52C4=\frac{52!}{4!(52-4)!}=270,725[/tex]Total outcomes=270,725
step 2
Find out the combination 13C4
(total club's cards=13)
[tex]13C4=\frac{13!}{4!(13-4)!}=715[/tex]therefore
The probability is equal to
P=715/270,725
