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Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 202 · 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 mean of 19, 5, 12, 8 and 6? (a) 10 (b) 12 (c) 11 (d) 9
  2. 2.What is the mode of 3, 17, 2, 3, 16, 16 and 3? (a) 16 (b) 3 (c) 17 (d) 2
  3. 3.What is the mean of 7, 6, 17 and 18? (a) 11 (b) 13 (c) 12 (d) 16
  4. 4.What is the mode of 4, 15, 10, 10, 10, 4 and 5? (a) 4 (b) 10 (c) 5 (d) 15
  5. 5.What is the mean of 19, 6, 4, 12 and 14? (a) 13 (b) 12 (c) 11 (d) 10
  6. 6.The mean of 6 numbers is 15. When the number 1 is added to them, what is the new mean? (a) 15 (b) 8 (c) 14 (d) 13
  7. 7.What is the mean of 10, 6, 11, 13, 9 and 11? (a) 11 (b) 9 (c) 12 (d) 10
  8. 8.What is the mode of 2, 9, 9, 14, 3, 9 and 3? (a) 9 (b) 2 (c) 3 (d) 14
  9. 9.What is the mean of 6, 8, 15, 16 and 10? (a) 11 (b) 13 (c) 12 (d) 10
  10. 10.What is the median of 17, 4, 16, 40 and 29? (a) 29 (b) 16 (c) 17 (d) 18
  11. 11.What is the mean of 2, 19, 20, 7 and 7? (a) 12 (b) 10 (c) 11 (d) 13
  12. 12.The mean of 6 numbers is 13. When the number 6 is added to them, what is the new mean? (a) 12 (b) 14 (c) 13 (d) 11
  13. 13.The mean of 8 numbers is 38. When the number 20 is added to them, what is the new mean? (a) 37 (b) 29 (c) 38 (d) 36
  14. 14.The mean of 8 numbers is 11. When the number 29 is added to them, what is the new mean? (a) 20 (b) 11 (c) 14 (d) 13
  15. 15.What is the mode of 17, 17, 19, 14, 17, 19 and 1? (a) 19 (b) 14 (c) 1 (d) 17
  16. 16.The mean of 4 numbers is 24. When the number 29 is added to them, what is the new mean? (a) 26 (b) 27 (c) 25 (d) 24
  17. 17.What is the mean of 16, 19, 14 and 7? (a) 13 (b) 14 (c) 16 (d) 15
  18. 18.What is the median of 29, 9, 1, 38 and 21? (a) 29 (b) 1 (c) 21 (d) 9
  19. 19.What is the mode of 5, 7, 15, 2, 15, 5 and 5? (a) 7 (b) 15 (c) 5 (d) 2
  20. 20.The mean of 4 numbers is 30. When the number 45 is added to them, what is the new mean? (a) 34 (b) 30 (c) 32 (d) 33
  21. 21.What is the mean of 2, 10, 4 and 8? (a) 6 (b) 5 (c) 7 (d) 8
  22. 22.The mean of 6 numbers is 32. When the number 25 is added to them, what is the new mean? (a) 32 (b) 33 (c) 31 (d) 30
  23. 23.What is the median of 8, 21, 15, 34 and 9? (a) 9 (b) 16 (c) 21 (d) 15
  24. 24.What is the median of 11, 6, 24, 7 and 40? (a) 11 (b) 12 (c) 7 (d) 24
  25. 25.What is the mean of 2, 17, 14, 6, 7 and 14? (a) 11 (b) 9 (c) 12 (d) 10
  26. 26.What is the median of 31, 6, 5, 13 and 30? (a) 13 (b) 30 (c) 5 (d) 17
  27. 27.The mean of 9 numbers is 33. When the number 13 is added to them, what is the new mean? (a) 31 (b) 32 (c) 33 (d) 23
  28. 28.What is the mean of 6, 2, 15, 16 and 6? (a) 11 (b) 8 (c) 10 (d) 9
  29. 29.What is the median of 20, 38, 34, 2 and 10? (a) 10 (b) 20 (c) 34 (d) 21
  30. 30.The mean of 7 numbers is 19. When the number 27 is added to them, what is the new mean? (a) 20 (b) 19 (c) 21 (d) 23
  31. 31.What is the mean of 20, 12, 2, 15, 19 and 22? (a) 15 (b) 14 (c) 16 (d) 18
  32. 32.What is the mean of 3, 6, 6 and 21? (a) 10 (b) 9 (c) 8 (d) 12
  33. 33.What is the mode of 19, 19, 1, 1, 18, 1 and 5? (a) 5 (b) 18 (c) 19 (d) 1
  34. 34.What is the mode of 11, 2, 3, 11, 8, 3 and 3? (a) 11 (b) 2 (c) 3 (d) 8
  35. 35.What is the mode of 20, 14, 17, 5, 14, 20 and 20? (a) 14 (b) 20 (c) 5 (d) 17
  36. 36.What is the mean of 4, 15, 5, 6, 7 and 11? (a) 10 (b) 9 (c) 8 (d) 7
  37. 37.What is the mode of 18, 18, 18, 3, 3, 1 and 2? (a) 18 (b) 1 (c) 2 (d) 3
  38. 38.What is the mode of 11, 8, 8, 18, 14, 11 and 8? (a) 14 (b) 18 (c) 8 (d) 11
  39. 39.What is the mean of 5, 4, 13, 5, 13 and 20? (a) 12 (b) 11 (c) 10 (d) 9
  40. 40.What is the mean of 4, 15, 6, 17 and 23? (a) 14 (b) 12 (c) 15 (d) 13

Answer key

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

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