Probability – Single Event – Higher – GCSE Questions – AQA These questions are the same format as previous GCSE exams. COPY means they use the exact same numbers as the original GCSE question. Otherwise, they are clone questions using different numbers. The worksheets are provided in 2 sizes.

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AQA Higher: June 2017 Paper 2, Q5 AQA Higher: June 2017 Paper 2, Q5 A code has 4 digits. Each digit is a number from 0 to 9 Digits may be repeated. The code starts 9 8 5 1 A code has 4 digits. Each digit is a number from 0 to 9 Digits may be repeated. The code starts 9 8 5 9 8 5 9 8 5 [1 mark] [1 mark] 1 (a) Alice chooses a number at random for the last digit. Write down the probability that she chooses the correct number. 1 (a) Alice chooses a number at random for the last digit. Write down the probability that she chooses the correct number. Answer Answer 1 (b) [1 mark] [1 mark] Trevor knows the last digit is odd but not 1 or 9. He chooses a different odd number at random. What is the probability that he chooses the correct number?. 1 (b) Trevor knows the last digit is odd but not 1 or 9. He chooses a different odd number at random. What is the probability that he chooses the correct number?. Answer Answer

AQA Higher: June 2017 Paper 3, Q9 AQA Higher: June 2017 Paper 3, Q9 There are 660 boys and 840 girls in a school. The probability that a boy chosen at random studies Drama is 2 5 The probability that a girl chosen at random studies Drama is 3 7 1 There are 660 boys and 840 girls in a school. The probability that a boy chosen at random studies Drama is 2 5 The probability that a girl chosen at random studies Drama is 3 7 1 (a) Work out the number of students in the school who study Drama. 1 (a) Work out the number of students in the school who study Drama. [3 marks] [3 marks] Answer Answer 1 (b) Work out the probability that a student chosen at random from the whole school does not study Drama. 1 (b) Work out the probability that a student chosen at random from the whole school does not study Drama. [2 marks] [2 marks] Answer Answer

AQA Higher: June 2017 Paper 2, Q5 A code has 4 digits. Each digit is a number from 0 to 9 Digits may be repeated. The code starts 9 8 5 9 8 5 [1 mark] 1 (a) Alice chooses a number at random for the last digit. Write down the probability that she chooses the correct number. Answer 1 (b) [1 mark] Trevor knows the last digit is odd but not 1 or 9. He chooses a different odd number at random. What is the probability that he chooses the correct number?. Answer

AQA Higher: June 2017 Paper 3, Q9 There are 660 boys and 840 girls in a school. The probability that a boy chosen at random studies Drama is 2 5 The probability that a girl chosen at random studies Drama is 3 7 1 (a) Work out the number of students in the school who study Drama. [3 marks] Answer 1 (b) Work out the probability that a student chosen at random from the whole school does not study Drama. [2 marks] Answer

AQA Higher: June 2017 Paper 2, Q5 A code has 4 digits. Each digit is a number from 0 to 9 Digits may be repeated. The code starts 9 8 5 9 8 5 [1 mark] 1 (a) Alice chooses a number at random for the last digit. Write down the probability that she chooses the correct number. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 = 10 1 10 Answer 1 (b) [1 mark] Trevor knows the last digit is odd but not 1 or 9. He chooses a different odd number at random. What is the probability that he chooses the correct number?. 1, 3, 5, 7, 9 × × 1 3 Answer

Boys: 660 × 2 5 = 264 Girls: 840 × 3 7 = 360 Total = 240 + 360 = 624 AQA Higher: June 2017 Paper 3, Q9 1 There are 660 boys and 840 girls in a school. The probability that a boy chosen at random studies Drama is 2 5 The probability that a girl chosen at random studies Drama is 3 7 1 (a) Work out the number of students in the school who study Drama. Boys: 660 × 2 5 = 264 [3 marks] Girls: 840 × 3 7 = 360 Total = 240 + 360 = 624 Answer 1 (b) Work out the probability that a student chosen at random from the whole school does not study Drama. [2 marks] Total students = 660 + 840 = 1500 NOT drama = 1500 – 624 = 876 876 1500 73 125 OR Answer

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