1

Set 1: Probability (Beginner)

Explanation

Answer: A

PROBLEM

The probability of rain tomorrow is 67%. What is the probability it will NOT rain?

The probability of rain tomorrow is 67%. What is the probability it will NOT rain?

A.

33%

✓ Correct
B.

43%

C.

67%

D.

57%

Detailed Explanation

Choice A is the best answer. P(not rain) = 100% - 67% = 33%

Why others are wrong:
B: 43% is incorrect because it does not satisfy the equation.
C: 67% is incorrect because it does not satisfy the equation.
D: 57% is incorrect because it does not satisfy the equation.