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Rain or Shine

Predict future weather using the probability that tomorrow is wet given today is wet and the probability that tomorrow is wet given that today is dry.


If the score is 8-8 do I have more chance of winning if the winner is the first to reach 9 points or the first to reach 10 points?

Snooker Frames

It is believed that weaker snooker players have a better chance of winning matches over eleven frames (i.e. first to win 6 frames) than they do over fifteen frames. Is this true?


Age 16 to 18
Challenge Level

You have to find the probability of the player winning 8 frames outright, or of winning 7 frames in the first 8 not winning the 8th and then winning the 9th or winning 7 of the first 8, losing the next two frames then winning the tenth or ... and so on.