You roll a fair die four times.What is the probability that you roll at least one 6?
A)0.482
B)0.518
C)0.167
D)0.667
E)0.0008

Question

Quizplus · Accepted Answer

The probability of rolling a 6 on one roll of a fair die is 1/6. So the probability of not rolling a 6 on one roll is 5/6.

The probability of not rolling a 6 on any of the four rolls is (5/6)^4 ≈ 0.482.

Therefore, the probability of rolling at least one 6 is 1 - 0.482 = 0.518.

So the best choice is B.

You Roll a Fair Die Four Times