A-LevelMathematicsProbability and statisticsMay/June 2017Paper 6 Q46 Marks
Two identical biased triangular spinners with sides marked 1, 2 and 3 are spun. For each spinner, the probabilities of landing on the sides marked 1, 2 and 3 are p, q and r respectively. The score is the sum of the numbers on the sides on which the spinners land. You are given that P(score is 6) = 36 and P(score is 5) = 4. Find the values of p, q and r.
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