Suppose that you select 2 cards without replacement from a s
Suppose that you select 2 cards without replacement from a standard deck of 52 playing cards.
a.) If the first card that you select is a heart, what is the probability that the second card that you select is a queen?
Solution
a) Out of 52 cards :
a) Probability of 1st card is heart = 13/52
Question is on conditional probability: when we want to find Probability of second card queen (B) when first card
is a heart(A)
Probability of queen and a heart =1/51
So, Probability that second card queen (B) given first card = (Probability of queen and a heart)/(Probability of 1st card is heart)
=(1/51) / (13/52) = 52/51*13 =4/51
