4

Set 4: Probability (Intermediate)

Explanation

Answer: B

PROBLEM

Historically, a card is randomly drawn from a standard 52-card deck. What is the probability of drawing an ace?

A card is randomly drawn from a standard 52-card deck. What is the probability of drawing an ace?

A.

3/13

B.

1/13

✓ Correct
C.

1/2

D.

1/4

Detailed Explanation

[Variation 6] Choice B is the best answer. 4 aces in 52 cards. P = 4/52 = 1/13

Why others are wrong:
A: 3/13 is incorrect because it does not satisfy the equation.
C: 1/2 is incorrect because it does not satisfy the equation.
D: 1/4 is incorrect because it does not satisfy the equation.