3p.02 Compare the probability of different possible outcomes using the 0–1 or 0–100% scale... Quiz: Pearson Edexcel Statistics, Unit 3

The 20 questions

1. On the probability scale, what does 0 represent?

   • Likely
   • Evens
   • Certain
   • Impossible

2. What probability corresponds to evens?

   • 1
   • 0.25
   • 0.5
   • 0

3. Which words describe a probability of 1?

   • Unlikely
   • Certain
   • Impossible
   • Evens

4. Which 0-100% value is equivalent to 0.8?

   • 0.8%
   • 8%
   • 80%
   • 800%

5. Which probability describes the most likely outcome?

   • 0.3
   • 0.7
   • 0.05
   • 0.007

6. Which probability describes an event that is very unlikely?

   • 0.9
   • 0.5
   • 0.02
   • 1

7. What is 3/8 as a percentage?

   • 37.5%
   • 3.75%
   • 83%
   • 38%

8. What does a probability value of 0.5 indicate?

   • Evens
   • Unlikely
   • Impossible
   • Certain

9. Which is least likely: 0.15, 40%, 2/3 or 0.5?

   • 0.5
   • 0.15
   • 40%
   • 2/3

10. Rain tomorrow has probability 0.85. Which language best describes this?

    • Evens
    • Very unlikely
    • Impossible
    • Very likely

11. What is 10% as a probability?

    • 0.01
    • 0.1
    • 1
    • 10

12. How do a probability of 0.35 and a probability of 35% compare?

    • 0.35 is greater
    • They are equal
    • 35% is greater
    • Cannot compare

13. Which term best describes an event with a probability of 0.45?

    • Slightly above evens
    • Certain
    • Very unlikely
    • Slightly below evens

14. A player wins 1 in 4 games. Which pair is correct?

    • 75%, fairly likely
    • 4%, very unlikely
    • 40%, evens
    • 25%, fairly unlikely

15. A sandwich has a 0.2 chance of containing cheese. What is this as a fraction in its lowest terms?

    • 1/5
    • 1/20
    • 1/2
    • 2/5

16. Which term describes an event with a probability of 0.9?

    • Impossible
    • Evens
    • Very likely
    • Unlikely

17. What is the maximum possible value for any probability?

    • 10
    • 0
    • 1
    • 100

18. Put these in order from least to most likely: 0.2, 1/3 and 45%.

    • 1/3, 0.2, 45%
    • 0.2, 1/3, 45%
    • 0.2, 45%, 1/3
    • 45%, 1/3, 0.2

19. If P(A) = 0.37, what is the probability that A does not happen?

    • 0.73
    • 1.37
    • 0.37
    • 0.63

20. What does a probability of 0.01 mean on average?

    • Once in 10 trials
    • Always occurs
    • Never occurs
    • Once in 100 trials

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