Mboma and Masilingi race against each other in a competition. If one of them wins the race, there will
be no more race, but if the race is a draw, they run another race. They run a maximum of three races.
Each time they race, the probability that Mboma wins is 0.45 and the probability that there is a draw is
0.08.
4.1.1 Draw the tree diagram that present all possible outcomes of this competition and their
probabilities [7]
4.1.2 Calculate the probability that Masilingi wins the competition. [4]
1
Expert's answer
2021-09-21T00:22:59-0400
Solution:
Each time they race, the probability that Masilingi wins is (1-0.45-0.08 = 0.47).
4.1.1: Tree diagram:
4.1.2:
The probability that Masilingi wins the competition"=0.47+0.08\\times0.47+0.08^2\\times0.47"
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