1. Andrea and Ling are evenly matched tennis players normally. Each time Ling loses a game to Andrea though, the chance of him winning the next game is 20% less than the game he just played. When he wins, his probability of winning the next game increases by 10%. Make a tree diagram for a three game series, then find the probability of Ling winning the series! show your work.

2.The odds of having an all-Canadian World Series are estimated to be 1:18. Based on this estimate, how likely is an all-Canadian World Series? show your work.

3.Explain the meaning of the terms in the probability formula, P(A)= n(A)/n(S).