Answer to Question #256552 in Statistics and Probability for Samson

Question

card is drawn from an ordinary deck. Find the probability of getting a 3 or a diamond card

Answer 1

There are 13 diamond cards, four 3's and one diamond 3.

$P(3\; or\; diamond)=\frac{13+4-1}{52}=\frac{16}{52}=\frac{4}{13}\approx0.3077.$