Download and practise with this A-Level Statistics 2022 question paper. Useful for revision, practice, and exam preparation in Zimbabwe.
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This is the A-Level Statistics question paper for Test 4 from 2022. Use it for exam practice under timed conditions. Time allowed: 1 hour.
A' LEVEL STATISTICS PROBABILITY TEST 4 TIME: 1 hour 45 marks Answer all questions. [If a numerical answer cannot be given exactly, and the accuracy required is not specified in the question, then in the case of an angle it should be given correct to the nearest degree, and in other cases it should be given to 2 significant figures.] schingwingwi7@gmail.com / +263784089807 Sharewell B. C 1. In a group of 12 international referees there are three from Africa, four from Asia and five from Europe. To officiate at a tournament, three referees are chosen at random from the group. Calculate the probability that a) a referee is chosen from each continent, [3] b) exactly two referees are chosen from Asia, [3] c) the three referees are chosen from the same continent. [4] 2. In a simple model of the weather in October, each day is classified as either fine or rainy. The probability that a fine day is followed by a fine day is 0.8 . The probability that a rainy day is followed by a fine day is 0.4 . The probability that that 10ctober is fine is 0.75 . a) Find the probability that 2 October is fine and the probability that 3 October is fine. [3] b) Find the conditional probability that 3 October is rainy given that 1 October is fine. [4] @ 2022 [SHARE] +263784089807 1