Examplary
Start for free
Oak MathsTest · Maths

Calculating theoretical probabilities from lists (one event)

The starter and exit quiz of the lesson “Calculating theoretical probabilities from lists (one event)”, from the unit “Probability: theoretical probabilities” (Year 9 Maths) by Oak National Academy.

Free to use. Edit it, share it and hand it out to your students.

Oak National Academy

12 questions

  1. The ___ that an event will occur is the proportion of times the event is expected to happen in a suitably large experiment.
  2. Which letter on the probability scale represents a probability of 0.5?
  3. The spinner is divided into equal-sized sectors. What fraction of the spinner is labelled 'win'?
  4. The spinner is divided into equal-sized sectors. ___% of the spinner is labelled 'lose'.
  5. A trial has three possible outcomes: {A, B, C}. P(A) = {2}\over{7}. P(B) = {1}\over{7}. P(C) = {4}\over{7}. Which outcome is most likely to happen?
  6. The probability on an outcome is 25%. Approximately how many times could you expect the outcome to occur in 500 trials?
  7. __________ probability is a probability based on counting the number of desired outcomes from a sample space where all individual outcomes are equally likely.
  8. What is the probability that this spinner lands on 'A'?
  9. What is the probability that this spinner lands on 'win'?
  10. A counter is picked at random from the bag. What is the probability that it contains the letter B?
  11. A regular six-sided dice is rolled. What is the probability of rolling a 4?
  12. A regular six-sided dice is rolled. Which event has a probability of {4}\over{6}?

License: OGL

Calculating theoretical probabilities from lists (one event) · Examplary