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Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 276 · 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.The mean of 6 numbers is 21. When the number 28 is added to them, what is the new mean? (a) 22 (b) 23 (c) 21 (d) 24
  2. 2.What is the mean of 15, 13, 2 and 2? (a) 10 (b) 7 (c) 8 (d) 9
  3. 3.What is the median of 36, 3, 4, 25 and 5? (a) 5 (b) 6 (c) 4 (d) 25
  4. 4.What is the mean of 2, 14, 4, 12 and 13? (a) 11 (b) 10 (c) 9 (d) 8
  5. 5.What is the median of 25, 19, 23, 29 and 24? (a) 26 (b) 23 (c) 25 (d) 24
  6. 6.The mean of 9 numbers is 16. When the number 6 is added to them, what is the new mean? (a) 15 (b) 11 (c) 16 (d) 14
  7. 7.The mean of 6 numbers is 19. When the number 47 is added to them, what is the new mean? (a) 24 (b) 19 (c) 33 (d) 23
  8. 8.The mean of 9 numbers is 25. When the number 15 is added to them, what is the new mean? (a) 25 (b) 23 (c) 24 (d) 20
  9. 9.The mean of 4 numbers is 21. When the number 6 is added to them, what is the new mean? (a) 19 (b) 17 (c) 21 (d) 18
  10. 10.The mean of 3 numbers is 19. When the number 31 is added to them, what is the new mean? (a) 22 (b) 23 (c) 19 (d) 25
  11. 11.What is the mean of 13, 13, 16, 14, 10 and 12? (a) 14 (b) 15 (c) 13 (d) 12
  12. 12.What is the median of 19, 27, 38, 34, 21, 12 and 20? (a) 27 (b) 21 (c) 20 (d) 34
  13. 13.What is the median of 1, 6, 28, 31, 5, 8 and 15? (a) 15 (b) 8 (c) 31 (d) 6
  14. 14.What is the mode of 10, 15, 17, 15, 15, 10 and 14? (a) 10 (b) 17 (c) 15 (d) 14
  15. 15.What is the mean of 5, 20, 9, 7 and 9? (a) 9 (b) 12 (c) 10 (d) 11
  16. 16.What is the mean of 9, 20, 20, 10, 9 and 16? (a) 12 (b) 15 (c) 14 (d) 13
  17. 17.What is the mean of 6, 17, 3 and 18? (a) 12 (b) 13 (c) 11 (d) 10
  18. 18.What is the median of 33, 30, 20, 11 and 40? (a) 33 (b) 20 (c) 30 (d) 31
  19. 19.What is the median of 3, 24, 17, 30 and 11? (a) 17 (b) 18 (c) 11 (d) 24
  20. 20.What is the mode of 2, 1, 15, 2, 15, 2 and 3? (a) 15 (b) 3 (c) 2 (d) 1
  21. 21.What is the mode of 5, 5, 5, 8, 13, 3 and 13? (a) 8 (b) 3 (c) 13 (d) 5
  22. 22.The mean of 9 numbers is 27. When the number 57 is added to them, what is the new mean? (a) 42 (b) 30 (c) 27 (d) 31
  23. 23.What is the mean of 11, 11, 9, 9 and 10? (a) 9 (b) 11 (c) 10 (d) 12
  24. 24.What is the mode of 13, 19, 19, 2, 13, 15 and 19? (a) 2 (b) 15 (c) 19 (d) 13
  25. 25.What is the mean of 5, 18, 18 and 19? (a) 12 (b) 16 (c) 15 (d) 20
  26. 26.What is the median of 34, 5, 18, 25 and 39? (a) 18 (b) 25 (c) 26 (d) 34
  27. 27.What is the mean of 11, 17, 18, 2 and 7? (a) 10 (b) 13 (c) 12 (d) 11
  28. 28.The mean of 3 numbers is 22. When the number 14 is added to them, what is the new mean? (a) 18 (b) 21 (c) 20 (d) 22
  29. 29.What is the mean of 8, 14, 9, 14, 3 and 18? (a) 12 (b) 10 (c) 13 (d) 11
  30. 30.What is the median of 25, 23, 13, 5, 12, 9 and 20? (a) 5 (b) 13 (c) 12 (d) 20
  31. 31.What is the mean of 16, 17, 4, 17 and 11? (a) 12 (b) 13 (c) 15 (d) 14
  32. 32.What is the mode of 5, 9, 14, 6, 9, 6 and 9? (a) 5 (b) 6 (c) 9 (d) 14
  33. 33.What is the median of 4, 17, 22, 26 and 27? (a) 17 (b) 26 (c) 23 (d) 22
  34. 34.What is the median of 8, 28, 30, 10, 17, 15 and 9? (a) 16 (b) 17 (c) 15 (d) 10
  35. 35.What is the mode of 5, 6, 17, 17, 3, 5 and 17? (a) 6 (b) 17 (c) 5 (d) 3
  36. 36.What is the mode of 9, 11, 20, 11, 17, 20 and 11? (a) 17 (b) 20 (c) 9 (d) 11
  37. 37.What is the median of 32, 3, 19, 9 and 17? (a) 16 (b) 19 (c) 17 (d) 9
  38. 38.What is the mode of 2, 4, 4, 2, 9, 2 and 7? (a) 9 (b) 4 (c) 7 (d) 2
  39. 39.What is the mode of 17, 1, 17, 9, 13, 9 and 9? (a) 17 (b) 1 (c) 13 (d) 9
  40. 40.What is the mean of 7, 12, 7, 9 and 5? (a) 9 (b) 10 (c) 8 (d) 7

Answer key

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

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