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Eduqas GCSE Mathematics Probability overview quiz quiz

12questions. Pick an answer and you'll see why right away.

  1. A bag contains 3 red, 4 blue and 3 yellow counters. What is the probability of drawing a blue counter?

  2. The probability it rains tomorrow is 0.280.28. What is the probability it does not rain?

  3. Two fair coins are flipped. What is the probability of getting exactly one head?

  4. On a tree diagram, how do you find the probability of one outcome followed by another along a single path?

  5. A bag has 5 red and 5 blue balls. Two are drawn without replacement. What is the probability both are red?

  6. In set notation, what does A∩BA \cap B represent?

  7. In a class of 30, 16 play football, 12 play tennis and 5 play both. How many play neither?

  8. A spinner lands on green 45 times in 150 spins. What is the relative frequency of green?

  9. A dice has P(six) =15= \tfrac{1}{5} (biased). How many sixes are expected in 200 rolls?

  10. Why does increasing the number of trials improve a relative-frequency estimate?

  11. Two fair six-sided dice are rolled and the scores added. How many outcomes are in the sample space?

  12. From a Venn diagram, a person is chosen from those who like coffee (8 like coffee only, 4 like both). What is the probability they also like tea?