You may also like
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.
Squash
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
A player has probability 0.4 of winning a single game. What is his probability of winning a 'best of 15 games' tournament?
Age 16 to 18 Challenge Level:
Why do this problem?
A simple context lending itself to the use of a tree diagram.Key Questions
What is unknown?How can we record the information?
Can we form an equation from the information given?
Possible Support
Try How Many Balls? and Fixing The Odds
Copyright © 1997 - 2020. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.