Question

a standard deck of cards contains 52 cards. one card is selected from the deck.

a) compute the probability of randomly selecting a ten or three

b) compute the probability of randomly selecting a ten or three or seven

c) Computer probability of randomly selecting a king or spade

Answer 1

a) $P=\frac{4+4}{52}=\frac{2}{13}\approx 0.1538.$

b) $P=\frac{4+4+4}{52}=\frac{3}{13}\approx 0.2308.$

c) $P=\frac{4+13-1}{52}=\frac{4}{13}\approx 0.3077.$