Question

Select the correct answer.
If you roll a fair die twice, what is the probability of getting an even number at least once?

A.
0.75

B.
0.36

C.
0.5

D.
0.25

Answer 1

A. 0.75

Reason: P(no even) = P(both odd) = (1/2)*(1/2) = 1/4, so P(at least one even) = 1 - 1/4 = 3/4 = 0.75.