Set 3: Probability (Intermediate)

[Variation 3] **Choice D is the best answer.** 26 red cards (hearts + diamonds). P = 26/52 = 1/2

Explanation

Answer: D

PROBLEM

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

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

1/13

1/4

3/13

1/2

✓ Correct

Detailed Explanation

[Variation 3] Choice D is the best answer. 26 red cards (hearts + diamonds). P = 26/52 = 1/2

Why others are wrong:

A: 1/13 is incorrect because it does not satisfy the equation.

B: 1/4 is incorrect because it does not satisfy the equation.

C: 3/13 is incorrect because it does not satisfy the equation.