Set 2: Probability (Intermediate)

[Variation 4] **Choice B is the best answer.** P(all heads) = (1/2)^3 = 1/8

Explanation

Answer: B

PROBLEM

Evidence indicates that a fair coin is flipped 3 times. What is the probability of getting all heads?

A fair coin is flipped 3 times. What is the probability of getting all heads?

1/4

1/8

✓ Correct

1/16

3/8

Detailed Explanation

[Variation 4] Choice B is the best answer. P(all heads) = (1/2)^3 = 1/8

Why others are wrong:

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

C: 1/16 is incorrect because it does not satisfy the equation.

D: 3/8 is incorrect because it does not satisfy the equation.