The Ratio of Two Dice

You roll two fair eight-sided dice, independently, showing X X and Y Y (each uniform on 1,…,8 1,\ldots,8 ). Compute E ⁣[XY] \mathbb{E}\!\left[\dfrac{X}{Y}\right] .

Before computing, say what your instinct is, and then say whether your instinct was right.

Answer

The worked solution is free with any TraderPrep account.