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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-4024-PR-0011 markL1 FoundationNon-calculatorSingle events
The probability that a train is late is 0.350.35. Find the probability that it is not late.

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR-0031 markL1 FoundationNon-calculatorFrequency
The probability of winning a game is 0.150.15. How many wins would you expect in 8080 games?

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR-0111 markL1 FoundationNon-calculatorSingle events
A biased spinner has outcomes 11, 22, 33, 44 with probabilities 0.20.2, 0.30.3, xx and 0.10.1. Find xx.

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR1-0011 markL1 FoundationNon-calculatorSingle events
A bag contains 55 red, 33 blue and 22 green counters. One is taken at random. Find the probability that it is blue.

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR1-0021 markL1 FoundationNon-calculatorSingle events
A fair six-sided dice is rolled. Find the probability that the score is a prime number.

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR1-0031 markL1 FoundationNon-calculatorFrequency
A fair coin is tossed 5050 times. How many heads would you expect?

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR1-0051 markL1 FoundationCalculatorFrequency
Four students each estimate the probability that a drawing pin lands point up. Whose estimate is most reliable?
Choose one option

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR-G011 markL1 FoundationNon-calculatorSingle events
A bag contains 66 red, 33 blue and 11 green counter. One counter is taken at random. Find the probability that it is not red.

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR-Q011 markL1 FoundationCalculatorSingle events
Which of these could NOT be a probability?
Choose one option

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR-Q021 markL1 FoundationCalculatorSingle events
A dice is described as fair. This means
Choose one option

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR-0022 marksL2 StandardCalculatorFrequency
A dice is rolled 120120 times and lands on six 2727 times. (a) Find the relative frequency of a six. (b) Use it to estimate how many sixes there would be in 600600 rolls.

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Salam Academy Original Practice · Proposed mark scheme
SA-4024-PR1-0042 marksL2 StandardNon-calculatorFrequency
Of 200200 cars passing a school, 4646 were red. (a) Estimate the probability that the next car is red. (b) Estimate how many of the next 500500 cars will be red.

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Salam Academy Original Practice · Proposed mark scheme