29 Jan '08 03:471 edit

Bobby and Crystal meet every Thursday for a game of chess. They find that after winning a game, Bobby has a 65% probability of winning the next game. Similarly, Crystal has a 60% probability of winning after she has won a game. Crystal won the game last week.

Q: If Crystal and Bobby play 100 games, how many games is each player likely to win???

[answer is 53 and 47, but how?]

Q: If Crystal and Bobby play 100 games, how many games is each player likely to win???

[answer is 53 and 47, but how?]