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Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 428 · 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, 10, 1, 10, 7 and 13? (a) 7 (b) 10 (c) 13 (d) 1
  2. 2.What is the mean of 2, 10, 12 and 20? (a) 12 (b) 10 (c) 13 (d) 11
  3. 3.What is the mean of 3, 20, 5, 14, 18 and 6? (a) 11 (b) 13 (c) 12 (d) 10
  4. 4.The mean of 7 numbers is 18. When the number 34 is added to them, what is the new mean? (a) 20 (b) 18 (c) 26 (d) 21
  5. 5.What is the mean of 3, 15, 10 and 16? (a) 13 (b) 10 (c) 11 (d) 12
  6. 6.What is the mode of 18, 7, 16, 18, 18, 9 and 16? (a) 7 (b) 16 (c) 18 (d) 9
  7. 7.The mean of 8 numbers is 30. When the number 21 is added to them, what is the new mean? (a) 31 (b) 30 (c) 29 (d) 28
  8. 8.What is the mean of 6, 17, 4, 10, 18 and 5? (a) 12 (b) 10 (c) 9 (d) 11
  9. 9.What is the mean of 20, 7, 8, 3 and 22? (a) 12 (b) 10 (c) 13 (d) 15
  10. 10.The mean of 3 numbers is 35. When the number 51 is added to them, what is the new mean? (a) 35 (b) 39 (c) 43 (d) 40
  11. 11.What is the mean of 10, 12, 17, 16 and 10? (a) 14 (b) 12 (c) 15 (d) 13
  12. 12.What is the mode of 2, 15, 4, 15, 2, 2 and 5? (a) 15 (b) 2 (c) 4 (d) 5
  13. 13.What is the mode of 1, 10, 15, 15, 5, 1 and 1? (a) 5 (b) 10 (c) 15 (d) 1
  14. 14.The mean of 6 numbers is 13. When the number 41 is added to them, what is the new mean? (a) 17 (b) 27 (c) 13 (d) 18
  15. 15.What is the median of 9, 10, 24, 26, 1, 19 and 29? (a) 19 (b) 24 (c) 26 (d) 10
  16. 16.What is the median of 16, 24, 23, 22 and 13? (a) 21 (b) 23 (c) 16 (d) 22
  17. 17.What is the median of 19, 39, 33, 40, 36, 15 and 34? (a) 40 (b) 34 (c) 36 (d) 33
  18. 18.The mean of 8 numbers is 24. When the number 42 is added to them, what is the new mean? (a) 27 (b) 24 (c) 26 (d) 33
  19. 19.What is the mode of 12, 16, 5, 5, 12, 5 and 17? (a) 16 (b) 17 (c) 12 (d) 5
  20. 20.What is the median of 19, 8, 5, 18 and 24? (a) 19 (b) 18 (c) 5 (d) 8
  21. 21.What is the mean of 18, 12, 16, 6 and 13? (a) 14 (b) 13 (c) 12 (d) 15
  22. 22.What is the mode of 11, 11, 10, 18, 11, 2 and 10? (a) 10 (b) 2 (c) 18 (d) 11
  23. 23.What is the median of 40, 18, 16, 24 and 26? (a) 18 (b) 24 (c) 26 (d) 16
  24. 24.The mean of 9 numbers is 15. When the number 5 is added to them, what is the new mean? (a) 15 (b) 10 (c) 14 (d) 13
  25. 25.What is the mode of 9, 6, 9, 2, 13, 13 and 9? (a) 2 (b) 6 (c) 13 (d) 9
  26. 26.What is the mode of 8, 10, 3, 4, 8, 8 and 10? (a) 3 (b) 4 (c) 8 (d) 10
  27. 27.What is the median of 24, 14, 26, 27 and 38? (a) 27 (b) 24 (c) 25 (d) 26
  28. 28.What is the median of 12, 10, 26, 20 and 13? (a) 12 (b) 26 (c) 13 (d) 20
  29. 29.The mean of 4 numbers is 13. When the number 28 is added to them, what is the new mean? (a) 16 (b) 13 (c) 17 (d) 15
  30. 30.What is the mean of 18, 4, 2, 17 and 19? (a) 12 (b) 10 (c) 13 (d) 15
  31. 31.What is the mean of 13, 20, 10 and 9? (a) 15 (b) 12 (c) 14 (d) 13
  32. 32.The mean of 7 numbers is 13. When the number 21 is added to them, what is the new mean? (a) 15 (b) 14 (c) 13 (d) 17
  33. 33.What is the mode of 9, 4, 2, 2, 9, 11 and 2? (a) 9 (b) 11 (c) 2 (d) 4
  34. 34.The mean of 9 numbers is 26. When the number 46 is added to them, what is the new mean? (a) 36 (b) 28 (c) 26 (d) 29
  35. 35.What is the median of 20, 4, 9, 11, 32, 3 and 12? (a) 12 (b) 11 (c) 13 (d) 9
  36. 36.What is the mean of 7, 7, 9, 9 and 18? (a) 12 (b) 9 (c) 11 (d) 10
  37. 37.What is the mean of 13, 16, 3, 19 and 24? (a) 15 (b) 17 (c) 16 (d) 14
  38. 38.What is the mean of 16, 16, 17 and 19? (a) 16 (b) 18 (c) 17 (d) 19
  39. 39.What is the median of 30, 12, 4, 25, 24, 9 and 36? (a) 24 (b) 25 (c) 20 (d) 12
  40. 40.What is the median of 40, 27, 12, 20, 19, 24 and 33? (a) 20 (b) 25 (c) 24 (d) 27

Answer key

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

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