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23 votes
23 votes
A fair die is rolled 6 times. What is the probability of rolling at least one 3? Round the answer to the nearest hundredth of a percent.

User JacekK
by
2.3k points

1 Answer

15 votes
15 votes

Probability is represented by the expression:


P(A)=\frac{number\text{of favourable outcomes}}{\text{Tolal number of favourable outcomes}}

Then, the probablity of rolling at least one 3:


\begin{gathered} You\text{ rolled it 6 times: 36 =total number of favourable outcomes} \\ \text{You want to roll at least one 3: }6=\text{ number of favourable outcomes} \\ P=(6)/(36)=0.17\text{ OR 17 percent} \end{gathered}

User Sudhaker
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