A-LevelMathematicsProbability and statisticsOct/Nov 2020Paper 5 Q49 Marks
In a certain country, the weather each day is classified as fine or rainy. The probability that a fine day is followed by a fine day is 0.75 and the probability that a rainy day is followed by a fine day is 0.4. The probability that it is fine on 1 April is 0.8. The tree diagram below shows the possibilities for the weather on 1 April and 2 April. [Figure X.X]
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