Question

An urn contains 9 balls, one marked win and the others marked lose. You and another player take turns selecting a ball at random from the urn, one at a time. The first person to select the win ball is the winner. If you draw first, find the probability that you will win if the sampling is done

Answer 1

You get 5 draws out of 9 total draws = $\frac{5}{9}$ = 56%