Exercise

Queen and spade

In this example, you'll use the generalized probability formula \(P(A \cup B) = P(A) + P(B) - P(A \cap B)\) to calculate the probability of two events. Consider a deck of cards (13 cards x 4 suites = 52 cards in total). One card is drawn at random. What is the probability of getting a queen or a spade? Here event A is the card being a queen and event B is the card being a spade. Think carefully about whether the two events have anything in common.

Instructions

50 XP

Possible answers

\(\frac{17}{52}\)

\(\frac{16}{52}\)

\(\frac{15}{52}\)

\(\frac{18}{52}\)