If 5 cards are drawn from a deck of cards without replacement What is the Probability that at least One of the cards is a heart?

P( at least one card is a heart) = 1 - P( 0 hearts)

P(0 hearts) = (39/52)(38/51)(37/50)(36/49)(35/48)

P( at least 1 heart) = 1- (39/52)(38/51)(37/50)(36/49)(35/48)

=0.778466