Originally Posted by

**peter20** Hi all,

I am in the beginning of learning statistics and I am trying to solve problems from the internet.

I found a problem with chess but I don't know how to solve it.

Could you help me ??

The problem is :

Two equals (equal possibilities for win) players are playing chess.

a. Is more possible to win someone 4 from 6 games or 5 from 9 ?

b. Is more possible to win at least 3 from 4 or at least 5 from 8?

c. How many games have to play a player so as the probability to win one of them to be > 0.9.

Thanks a lot for your help