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The probability of rolling a 4 when you throw once a fair die is: P(4) = 1/6.

The probability of not rolling a 4 when you throw once a fair die is: P(NO 4) = 5/6.

If you roll a fair die four times, the probability of rolling a four on only the second

throw is:

P(NO 4, 4, NO 4, NO 4) = (5/6)(1/6)(5/6)(5/6) = 0.096450617... ≈ 9.6%

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Q: If you roll a fair die four times what is the probability of rolling a four on only the second throw?
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