Question

a fair, six-sided die is rolled repeatedly until a 5 is observed. what is the probability that you roll a 5 on your second roll?

Answer 1

5/36.

Explanation:

Probability(a 5 is rolled on 1 roll) = 1/6

Probability( Not 5 on first roll) = 5/6

Probability (Not 5 on first roll and 5 on the second roll)

= 5/6 * 1/6

= 5/36.