2

Set 1: Probability (Intermediate)

Explanation

Answer: B

PROBLEM

Researchers have observed that a card is randomly drawn from a standard 52-card deck. What is the probability of drawing a heart?

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

A.

1/13

B.

1/4

✓ Correct
C.

1/2

D.

3/13

Detailed Explanation

[Variation 3] Choice B is the best answer. 13 hearts in 52 cards. P = 13/52 = 1/4

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