Statistics and Probability: Further Practice

Mean, median, mode and range, and reading a probability as a fraction or a percent.

8 questions, free, marked as you go with a worked explanation on every one.

What this covers

The questions

  1. Find the mean of 4, 8, 6, 10, 12.
  2. Find the median of 3, 9, 5, 1, 7.
  3. A bag holds 20 marbles, 5 of which are red. What is the probability of drawing a red marble, as a percent?
  4. A spinner has 4 equal sections, 1 of which is blue. What is the probability of landing on blue, as a percent?
  5. Use the table below, showing how many students prefer each sport. What fraction of the students prefer soccer?
  6. Find the mode of 4, 7, 4, 9, 4, 2.
  7. Find the range of 15, 3, 22, 8, 11.
  8. A six-sided die is rolled once. What is the probability of rolling a number greater than 4?

Answer these free