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Math 5 · Unit 8: Probability · Cambridge Primary Maths Stage 5

8.2 Experiments and simulations

15 questions · e.g. A coin is tossed 100 times. About how many heads would …

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Questions

  1. 1. A coin is tossed 100 times. About how many heads would you expect?

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  2. 2. A dice is rolled 60 times. About how many 6s would you expect?

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  3. 3. Ana tosses a coin 10 times and gets 7 heads. Is the coin unfair?

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  4. 4. Which gives more reliable results?

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  5. 5. A spinner is half red, half blue. In 20 spins, about how many reds?

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  6. 6. What is an outcome?

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  7. 7. Rolling a dice to choose who goes first is an example of …

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  8. 8. A bag has 3 red and 1 blue. You pick 40 times (putting back). About how many reds?

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  9. 9. Results: heads 48, tails 52. Is that close to what you'd expect?

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  10. 10. After rolling three 6s in a row, the next roll being a 6 is …

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  11. 11. A spinner has 4 equal parts. In 40 spins, about how many times on each part?

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  12. 12. How should you record results of an experiment?

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  13. 13. Which is a fair way to choose 1 of 2 children?

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  14. 14. A dice landed on 1 twenty times out of 30. What might that suggest?

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  15. 15. If you repeat an experiment, will you always get the same results?

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