Expectations

You roll a standard six-faced-die and get n.n. Then, you roll it again until you get a number greater than or equal to nn.

The expected number of times you need to roll your die (after the initial roll) is of the form AB\dfrac{A}{B} where AA and BB are co-prime positive integers.

Find A+B.A+B.

×

Problem Loading...

Note Loading...

Set Loading...