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Calculating theoretical probabilities from Venn diagrams (two events)

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

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Oak National Academy

11 questions

  1. There are two trials. In Trial 1, a fair spinner with {A, B} is spun twice. In Trial 2, a fair spinner with {B, C} is spun twice. Which statement is true?
  2. If the probability of an event (A) is /frac{2}{5}, and the experiment is repeated 25 times, what is the theoretical number of times event (A) will occur?
  3. A random character is selected from the word MISSISSIPPI, which of the following statements are true?
  4. If the probability of an event (A) is /frac{1}{8}, and the experiment is repeated 40 times, what is the theoretical number of times event (A) will occur?
  5. If you roll a fair six sided die twice and sum the results, what is the most likely sum below?
  6. If you roll a fair six sided die twice and sum the results, what is the most likely sum below?
  7. Using this Venn diagram, what is the probability of an object being randomly selected from B?
  8. Using this Venn diagram, what is the probability of an object being randomly selected that is in A and B?
  9. Using the diagram, what is P(A and not B)?
  10. Using the diagram, what is P(not A and not B)?
  11. Using the diagram, what is P(not A and not B)?

License: OGL

Calculating theoretical probabilities from Venn diagrams (two events) · Examplary