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Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 141 · 40 questions
TalentJR

How to solve it (Work with totals): Mean = total ÷ how many; so total = mean × how many. Median: put the numbers in order and take the middle one. Mode: the number that appears most often. A number added: new mean = (old total + the number) ÷ (how many + 1).

NameDateTime takenScore ___ / 40
  1. 1.What is the mode of 1, 1, 1, 10, 18, 16 and 18? (a) 10 (b) 18 (c) 1 (d) 16
  2. 2.What is the mode of 8, 8, 4, 13, 8, 4 and 1? (a) 4 (b) 1 (c) 8 (d) 13
  3. 3.What is the mean of 3, 12, 19, 16 and 10? (a) 12 (b) 10 (c) 15 (d) 13
  4. 4.The mean of 5 numbers is 29. When the number 23 is added to them, what is the new mean? (a) 27 (b) 28 (c) 29 (d) 26
  5. 5.What is the mean of 3, 8, 16, 12 and 21? (a) 12 (b) 10 (c) 15 (d) 13
  6. 6.What is the mean of 3, 9, 19 and 5? (a) 8 (b) 10 (c) 9 (d) 12
  7. 7.What is the mean of 3, 5, 13, 19, 9 and 5? (a) 11 (b) 8 (c) 9 (d) 10
  8. 8.What is the mean of 3, 4, 11 and 6? (a) 7 (b) 8 (c) 5 (d) 6
  9. 9.What is the mean of 16, 17, 12, 17, 7 and 15? (a) 13 (b) 15 (c) 12 (d) 14
  10. 10.What is the mean of 20, 20, 6, 3 and 6? (a) 10 (b) 12 (c) 11 (d) 13
  11. 11.What is the median of 28, 7, 22, 9 and 23? (a) 23 (b) 22 (c) 21 (d) 9
  12. 12.What is the mode of 8, 5, 11, 14, 11, 8 and 8? (a) 8 (b) 14 (c) 11 (d) 5
  13. 13.What is the median of 3, 30, 19, 9 and 8? (a) 9 (b) 19 (c) 8 (d) 10
  14. 14.What is the mode of 15, 3, 15, 15, 3, 9 and 18? (a) 15 (b) 9 (c) 3 (d) 18
  15. 15.What is the mean of 17, 12, 8, 10 and 23? (a) 13 (b) 15 (c) 16 (d) 14
  16. 16.What is the mean of 11, 9, 6, 5, 6 and 17? (a) 8 (b) 11 (c) 9 (d) 10
  17. 17.What is the median of 15, 6, 4, 18 and 14? (a) 4 (b) 15 (c) 6 (d) 14
  18. 18.What is the mean of 17, 19, 13, 2, 4 and 11? (a) 13 (b) 10 (c) 11 (d) 12
  19. 19.What is the median of 4, 12, 33, 21, 17, 19 and 30? (a) 21 (b) 20 (c) 19 (d) 17
  20. 20.What is the mode of 11, 11, 19, 10, 6, 11 and 6? (a) 10 (b) 11 (c) 6 (d) 19
  21. 21.The mean of 5 numbers is 15. When the number 27 is added to them, what is the new mean? (a) 21 (b) 17 (c) 15 (d) 18
  22. 22.What is the median of 23, 25, 27, 5, 32, 36 and 12? (a) 23 (b) 5 (c) 25 (d) 27
  23. 23.The mean of 3 numbers is 12. When the number 8 is added to them, what is the new mean? (a) 13 (b) 10 (c) 12 (d) 11
  24. 24.What is the mode of 7, 7, 19, 7, 2, 6 and 2? (a) 19 (b) 7 (c) 6 (d) 2
  25. 25.The mean of 8 numbers is 37. When the number 19 is added to them, what is the new mean? (a) 28 (b) 37 (c) 36 (d) 35
  26. 26.What is the mean of 14, 17, 9, 16 and 14? (a) 14 (b) 13 (c) 15 (d) 16
  27. 27.What is the median of 16, 7, 31, 24 and 17? (a) 19 (b) 31 (c) 17 (d) 24
  28. 28.What is the median of 38, 13, 5, 9, 24, 11 and 6? (a) 12 (b) 13 (c) 9 (d) 11
  29. 29.What is the mean of 2, 8, 8, 10 and 22? (a) 11 (b) 10 (c) 12 (d) 9
  30. 30.What is the median of 7, 11, 27, 16, 10, 32 and 30? (a) 19 (b) 16 (c) 11 (d) 27
  31. 31.What is the mode of 7, 1, 7, 1, 15, 1 and 12? (a) 7 (b) 15 (c) 1 (d) 12
  32. 32.What is the median of 5, 19, 39, 32, 6, 3 and 11? (a) 32 (b) 19 (c) 11 (d) 6
  33. 33.What is the median of 31, 6, 40, 13, 32, 5 and 39? (a) 32 (b) 13 (c) 30 (d) 31
  34. 34.What is the mean of 19, 17, 10, 20, 19 and 11? (a) 16 (b) 15 (c) 18 (d) 17
  35. 35.What is the median of 40, 5, 2, 24, 12, 14 and 32? (a) 12 (b) 15 (c) 24 (d) 14
  36. 36.What is the mode of 17, 20, 17, 20, 14, 17 and 12? (a) 20 (b) 12 (c) 14 (d) 17
  37. 37.What is the mean of 7, 7, 2 and 20? (a) 8 (b) 12 (c) 9 (d) 10
  38. 38.What is the mode of 19, 4, 19, 9, 7, 9 and 19? (a) 7 (b) 19 (c) 4 (d) 9
  39. 39.What is the mode of 2, 10, 4, 4, 10, 8 and 4? (a) 10 (b) 8 (c) 4 (d) 2
  40. 40.What is the median of 32, 40, 6, 22, 24, 33 and 36? (a) 24 (b) 33 (c) 22 (d) 32

Answer key

  1. 1
  2. 8
  3. 12
  4. 28
  5. 12
  6. 9
  7. 9
  8. 6
  9. 14
  10. 11
  11. 22
  12. 8
  13. 9
  14. 15
  15. 14
  16. 9
  17. 14
  18. 11
  19. 19
  20. 11
  21. 17
  22. 25
  23. 11
  24. 7
  25. 35
  26. 14
  27. 17
  28. 11
  29. 10
  30. 16
  31. 1
  32. 11
  33. 31
  34. 16
  35. 14
  36. 17
  37. 9
  38. 19
  39. 4
  40. 32

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