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Year 7 Maths — Probability

Work out the probability of a simple event and of it not happening.

Name: ________________________

  1. 1.What is the probability of an event that is certain to happen?

    • a) It depends on the event
    • b) 0
    • c) 1
    • d) 0.5

  2. 2.The probability that it rains tomorrow is 0.3. What is the probability that it does not rain?

  3. 3.A fair die is rolled. What is the probability of getting a number greater than 4? Give your answer as a fraction.

  4. 4.A bag holds 3 red balls and 5 blue balls. One is taken out without looking. What is the probability it is red? Give your answer as a fraction.

  5. 5.A fair coin is tossed. What is the probability of getting a head? Give your answer as a fraction.

  6. 6.A fair die is rolled. What is the probability of getting a 4? Give your answer as a fraction.

  7. 7.A card is drawn from a full pack of 52. What is the probability it is red? Give your answer as a fraction.

  8. 8.A bag holds 3 red balls and 5 blue balls. One is taken out without looking. What is the probability it is blue? Give your answer as a fraction.

Answer key — Year 7 Maths — Probability

  1. 1. c) 1
  2. 2. 0.7
  3. 3. 1/3
  4. 4. 3/8
  5. 5. 1/2
  6. 6. 1/6
  7. 7. 1/2
  8. 8. 5/8