Mean Median Mode Worksheet for Maths Olympiad
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.What is the mean of 3, 11, 16 and 18? (a) 13 (b) 16 (c) 12 (d) 11
- 2.What is the mean of 15, 7, 8 and 14? (a) 11 (b) 12 (c) 10 (d) 13
- 3.What is the median of 29, 8, 24, 30, 6, 25 and 18? (a) 20 (b) 25 (c) 24 (d) 30
- 4.The mean of 3 numbers is 35. When the number 19 is added to them, what is the new mean? (a) 35 (b) 31 (c) 27 (d) 32
- 5.The mean of 8 numbers is 19. When the number 46 is added to them, what is the new mean? (a) 23 (b) 22 (c) 21 (d) 19
- 6.What is the median of 24, 21, 37, 35, 10, 16 and 27? (a) 21 (b) 27 (c) 35 (d) 24
- 7.What is the median of 9, 22, 2, 38 and 12? (a) 9 (b) 2 (c) 12 (d) 22
- 8.What is the mode of 15, 14, 15, 14, 14, 11 and 13? (a) 15 (b) 13 (c) 14 (d) 11
- 9.What is the median of 13, 8, 39, 22 and 31? (a) 22 (b) 39 (c) 13 (d) 31
- 10.What is the median of 9, 34, 32, 33, 36, 30 and 26? (a) 30 (b) 32 (c) 31 (d) 33
- 11.What is the mean of 4, 6, 13, 19, 10 and 8? (a) 12 (b) 11 (c) 10 (d) 9
- 12.The mean of 6 numbers is 37. When the number 9 is added to them, what is the new mean? (a) 23 (b) 33 (c) 37 (d) 34
- 13.What is the median of 29, 12, 7, 30 and 10? (a) 7 (b) 12 (c) 29 (d) 10
- 14.What is the mode of 2, 2, 16, 14, 18, 2 and 16? (a) 16 (b) 2 (c) 18 (d) 14
- 15.What is the mean of 14, 3, 13 and 6? (a) 9 (b) 8 (c) 12 (d) 10
- 16.What is the median of 2, 22, 5, 27, 37, 10 and 34? (a) 27 (b) 22 (c) 23 (d) 10
- 17.What is the mean of 18, 5, 17 and 12? (a) 12 (b) 15 (c) 14 (d) 13
- 18.What is the median of 17, 8, 36, 29 and 12? (a) 29 (b) 36 (c) 12 (d) 17
- 19.What is the median of 30, 11, 21, 38, 24, 27 and 29? (a) 29 (b) 24 (c) 27 (d) 38
- 20.What is the median of 14, 25, 5, 10 and 30? (a) 25 (b) 10 (c) 5 (d) 14
- 21.What is the mean of 15, 10, 19, 14, 6 and 8? (a) 13 (b) 12 (c) 11 (d) 14
- 22.What is the mode of 19, 6, 8, 19, 1, 8 and 19? (a) 19 (b) 8 (c) 6 (d) 1
- 23.The mean of 9 numbers is 39. When the number 29 is added to them, what is the new mean? (a) 38 (b) 37 (c) 39 (d) 34
- 24.What is the median of 32, 25, 17, 31, 40, 7 and 27? (a) 27 (b) 31 (c) 28 (d) 25
- 25.What is the mode of 2, 15, 15, 3, 15, 14 and 14? (a) 2 (b) 3 (c) 15 (d) 14
- 26.What is the median of 33, 5, 12, 26 and 40? (a) 12 (b) 26 (c) 27 (d) 33
- 27.What is the mode of 13, 13, 7, 14, 7, 8 and 7? (a) 7 (b) 8 (c) 14 (d) 13
- 28.What is the median of 22, 7, 24, 12, 28, 11 and 14? (a) 22 (b) 15 (c) 14 (d) 12
- 29.What is the mean of 7, 4, 19, 5, 20 and 11? (a) 13 (b) 12 (c) 10 (d) 11
- 30.The mean of 4 numbers is 22. When the number 7 is added to them, what is the new mean? (a) 22 (b) 18 (c) 19 (d) 20
- 31.What is the mode of 8, 13, 2, 9, 9, 13 and 13? (a) 9 (b) 8 (c) 13 (d) 2
- 32.The mean of 7 numbers is 20. When the number 12 is added to them, what is the new mean? (a) 16 (b) 20 (c) 19 (d) 18
- 33.What is the mode of 16, 15, 19, 7, 15, 16 and 15? (a) 19 (b) 7 (c) 16 (d) 15
- 34.The mean of 6 numbers is 36. When the number 15 is added to them, what is the new mean? (a) 36 (b) 32 (c) 34 (d) 33
- 35.The mean of 7 numbers is 27. When the number 3 is added to them, what is the new mean? (a) 25 (b) 24 (c) 15 (d) 27
- 36.The mean of 4 numbers is 36. When the number 21 is added to them, what is the new mean? (a) 33 (b) 36 (c) 32 (d) 34
- 37.What is the median of 22, 33, 13, 31, 5, 34 and 18? (a) 31 (b) 18 (c) 23 (d) 22
- 38.What is the median of 19, 25, 3, 31, 33, 7 and 21? (a) 25 (b) 19 (c) 21 (d) 31
- 39.The mean of 3 numbers is 12. When the number 16 is added to them, what is the new mean? (a) 14 (b) 12 (c) 15 (d) 13
- 40.What is the mean of 11, 15, 14 and 16? (a) 14 (b) 13 (c) 16 (d) 15
Answer key
- 12
- 11
- 24
- 31
- 22
- 24
- 12
- 14
- 22
- 32
- 10
- 33
- 12
- 2
- 9
- 22
- 13
- 17
- 27
- 14
- 12
- 19
- 38
- 27
- 15
- 26
- 7
- 14
- 11
- 19
- 13
- 19
- 15
- 33
- 24
- 33
- 22
- 21
- 13
- 14
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