Mean Median Mode Worksheet for Maths Olympiad

Maths Olympiad topic 27: Data handling: mean, median, mode · Set 779 · 40 questions

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).

1. 1.What is the mode of 16, 1, 3, 3, 3, 4 and 1? (a) 3 (b) 4 (c) 1 (d) 16
2. 2.What is the mean of 19, 16, 9 and 20? (a) 17 (b) 15 (c) 16 (d) 18
3. 3.What is the median of 30, 34, 11, 4, 37, 2 and 13? (a) 4 (b) 13 (c) 30 (d) 11
4. 4.The mean of 4 numbers is 31. When the number 11 is added to them, what is the new mean? (a) 21 (b) 27 (c) 31 (d) 28
5. 5.What is the median of 22, 11, 2, 14 and 3? (a) 14 (b) 11 (c) 3 (d) 2
6. 6.What is the mean of 11, 15, 4, 14 and 16? (a) 10 (b) 15 (c) 12 (d) 13
7. 7.What is the median of 9, 40, 18, 24, 13, 36 and 34? (a) 18 (b) 34 (c) 24 (d) 25
8. 8.What is the mode of 14, 14, 17, 1, 1, 20 and 1? (a) 17 (b) 14 (c) 1 (d) 20
9. 9.What is the mode of 1, 10, 3, 3, 3, 2 and 2? (a) 3 (b) 10 (c) 2 (d) 1
10. 10.What is the mode of 17, 17, 15, 11, 17, 20 and 15? (a) 11 (b) 17 (c) 20 (d) 15
11. 11.What is the mode of 5, 12, 8, 8, 5, 8 and 13? (a) 8 (b) 5 (c) 13 (d) 12
12. 12.What is the mean of 20, 15, 12, 13, 9 and 9? (a) 15 (b) 13 (c) 12 (d) 14
13. 13.The mean of 7 numbers is 16. When the number 40 is added to them, what is the new mean? (a) 28 (b) 16 (c) 19 (d) 20
14. 14.What is the mode of 11, 14, 19, 4, 19, 4 and 4? (a) 11 (b) 4 (c) 14 (d) 19
15. 15.What is the median of 2, 18, 35, 12 and 34? (a) 12 (b) 35 (c) 18 (d) 34
16. 16.What is the mode of 9, 10, 3, 17, 10, 10 and 17? (a) 3 (b) 17 (c) 9 (d) 10
17. 17.What is the median of 2, 21, 5, 3, 38, 19 and 22? (a) 5 (b) 21 (c) 19 (d) 3
18. 18.What is the mode of 15, 15, 14, 15, 20, 14 and 18? (a) 14 (b) 20 (c) 18 (d) 15
19. 19.What is the median of 5, 9, 37, 19, 21, 4 and 11? (a) 12 (b) 11 (c) 9 (d) 19
20. 20.The mean of 7 numbers is 40. When the number 24 is added to them, what is the new mean? (a) 32 (b) 39 (c) 40 (d) 38
21. 21.The mean of 4 numbers is 35. When the number 50 is added to them, what is the new mean? (a) 37 (b) 35 (c) 39 (d) 38
22. 22.What is the median of 40, 4, 23, 22 and 2? (a) 23 (b) 22 (c) 4 (d) 21
23. 23.What is the mean of 7, 6, 3, 7, 3 and 16? (a) 6 (b) 7 (c) 8 (d) 9
24. 24.What is the mode of 8, 11, 18, 15, 15, 8 and 15? (a) 8 (b) 15 (c) 11 (d) 18
25. 25.What is the mode of 20, 12, 12, 18, 12, 4 and 18? (a) 20 (b) 4 (c) 12 (d) 18
26. 26.What is the mean of 6, 17, 4 and 13? (a) 9 (b) 10 (c) 8 (d) 11
27. 27.What is the median of 35, 1, 18, 19 and 29? (a) 18 (b) 29 (c) 20 (d) 19
28. 28.What is the mode of 16, 11, 16, 11, 15, 7 and 11? (a) 7 (b) 15 (c) 16 (d) 11
29. 29.What is the median of 11, 3, 6, 15 and 23? (a) 15 (b) 6 (c) 12 (d) 11
30. 30.What is the median of 5, 1, 37, 16, 3, 21 and 26? (a) 16 (b) 5 (c) 17 (d) 21
31. 31.The mean of 5 numbers is 11. When the number 35 is added to them, what is the new mean? (a) 16 (b) 23 (c) 15 (d) 11
32. 32.What is the mean of 9, 20, 11 and 20? (a) 15 (b) 20 (c) 16 (d) 12
33. 33.The mean of 9 numbers is 27. When the number 17 is added to them, what is the new mean? (a) 27 (b) 25 (c) 22 (d) 26
34. 34.What is the mode of 9, 11, 8, 11, 20, 11 and 20? (a) 9 (b) 20 (c) 8 (d) 11
35. 35.What is the median of 15, 4, 13, 8, 29, 24 and 36? (a) 15 (b) 8 (c) 13 (d) 24
36. 36.What is the mode of 18, 18, 1, 15, 1, 7 and 18? (a) 7 (b) 1 (c) 15 (d) 18
37. 37.What is the median of 28, 33, 35, 24, 7, 23 and 1? (a) 23 (b) 28 (c) 24 (d) 25
38. 38.What is the mean of 3, 6, 10, 5 and 16? (a) 10 (b) 7 (c) 8 (d) 9
39. 39.What is the mean of 9, 3, 13 and 7? (a) 10 (b) 9 (c) 7 (d) 8
40. 40.What is the mean of 7, 13, 14, 16, 2 and 20? (a) 11 (b) 12 (c) 13 (d) 14

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