I heard that you can use Microsoft Xcel to compute probability. I've written
down about 30 different games of rock, paper, scissors in an attempt to find
patterns of what people do. I'd like to enter this information into the
computer and then just have the computer tell me what is most likely to come
next during a game.

ie. If I told Xcel that someone did rock, rock, scissors, could Xcel then
tell me what is most likely to come next from the information it's already
been given about previous games?

Thanks very much.