Question 361892
2,3,5,7 are the prime numbers in the deck.
Since there are 4 suits, that makes a total of 16 primes in 52 cards.
P(prime)={{{16/52=4/13}}}
P(not prime)={{{36/52=9/13}}}
If the first card is not prime, then for the second draw. 
P(prime)={{{16/51}}}
P(2nd card prime, 1st card not prime)={{{(16/51)(9/13)=48/221}}}