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.The mean of 6 numbers is 40. When the number 54 is added to them, what is the new mean? (a) 42 (b) 43 (c) 40 (d) 47
- 2.What is the mode of 19, 1, 12, 1, 19, 19 and 13? (a) 12 (b) 19 (c) 13 (d) 1
- 3.What is the mean of 12, 9, 8, 2, 7 and 22? (a) 9 (b) 11 (c) 10 (d) 12
- 4.What is the mean of 7, 11, 9 and 5? (a) 8 (b) 9 (c) 10 (d) 7
- 5.What is the mode of 9, 18, 18, 9, 20, 13 and 9? (a) 18 (b) 20 (c) 13 (d) 9
- 6.What is the mean of 5, 2, 6, 5 and 12? (a) 6 (b) 7 (c) 5 (d) 8
- 7.What is the mode of 8, 17, 13, 8, 5, 17 and 17? (a) 8 (b) 13 (c) 17 (d) 5
- 8.What is the mean of 15, 7, 6, 2 and 5? (a) 8 (b) 9 (c) 7 (d) 6
- 9.What is the mean of 11, 20, 14 and 15? (a) 15 (b) 12 (c) 16 (d) 20
- 10.What is the median of 8, 28, 22, 9 and 35? (a) 22 (b) 9 (c) 23 (d) 28
- 11.What is the mean of 5, 14, 12 and 9? (a) 11 (b) 10 (c) 8 (d) 9
- 12.What is the median of 19, 6, 39, 20, 30, 11 and 32? (a) 21 (b) 19 (c) 20 (d) 30
- 13.What is the mode of 11, 6, 1, 1, 1, 8 and 6? (a) 11 (b) 8 (c) 1 (d) 6
- 14.What is the mean of 18, 4, 12, 6 and 10? (a) 10 (b) 12 (c) 9 (d) 11
- 15.What is the mode of 4, 9, 2, 9, 7, 7 and 9? (a) 4 (b) 7 (c) 9 (d) 2
- 16.What is the median of 14, 35, 19, 18 and 29? (a) 23 (b) 29 (c) 19 (d) 18
- 17.The mean of 8 numbers is 14. When the number 41 is added to them, what is the new mean? (a) 14 (b) 17 (c) 18 (d) 16
- 18.What is the mean of 2, 7, 13, 20, 14 and 10? (a) 13 (b) 12 (c) 10 (d) 11
- 19.What is the mode of 7, 7, 6, 4, 7, 6 and 17? (a) 6 (b) 4 (c) 7 (d) 17
- 20.What is the median of 3, 23, 38, 29, 15, 8 and 11? (a) 15 (b) 11 (c) 29 (d) 23
- 21.What is the mean of 5, 15, 4, 19 and 7? (a) 9 (b) 12 (c) 11 (d) 10
- 22.The mean of 6 numbers is 18. When the number 25 is added to them, what is the new mean? (a) 19 (b) 20 (c) 21 (d) 18
- 23.What is the mode of 5, 12, 5, 1, 15, 12 and 12? (a) 5 (b) 15 (c) 12 (d) 1
- 24.What is the median of 4, 3, 14, 7, 19, 17 and 32? (a) 15 (b) 7 (c) 17 (d) 14
- 25.What is the mode of 19, 11, 15, 15, 10, 10 and 10? (a) 15 (b) 11 (c) 19 (d) 10
- 26.What is the mode of 18, 11, 16, 11, 20, 16 and 11? (a) 11 (b) 20 (c) 16 (d) 18
- 27.What is the mean of 14, 13, 4, 6 and 13? (a) 9 (b) 11 (c) 10 (d) 12
- 28.What is the mode of 5, 17, 11, 18, 5, 17 and 17? (a) 5 (b) 18 (c) 11 (d) 17
- 29.What is the mode of 18, 5, 5, 2, 18, 13 and 18? (a) 2 (b) 13 (c) 5 (d) 18
- 30.What is the median of 3, 32, 12, 7 and 1? (a) 11 (b) 7 (c) 12 (d) 3
- 31.What is the median of 36, 3, 4, 31, 24, 6 and 27? (a) 31 (b) 24 (c) 6 (d) 27
- 32.The mean of 4 numbers is 19. When the number 9 is added to them, what is the new mean? (a) 18 (b) 14 (c) 19 (d) 17
- 33.The mean of 8 numbers is 32. When the number 23 is added to them, what is the new mean? (a) 30 (b) 32 (c) 31 (d) 33
- 34.What is the mean of 3, 3, 7 and 11? (a) 5 (b) 7 (c) 8 (d) 6
- 35.What is the mean of 13, 6, 10, 5 and 16? (a) 12 (b) 10 (c) 9 (d) 11
- 36.What is the mean of 2, 13, 15, 18, 4 and 14? (a) 10 (b) 12 (c) 13 (d) 11
- 37.What is the median of 18, 10, 16, 22, 2, 5 and 35? (a) 16 (b) 18 (c) 10 (d) 22
- 38.The mean of 5 numbers is 21. When the number 9 is added to them, what is the new mean? (a) 15 (b) 21 (c) 20 (d) 19
- 39.What is the mode of 5, 13, 16, 20, 20, 20 and 16? (a) 16 (b) 20 (c) 13 (d) 5
- 40.What is the median of 34, 2, 24, 6 and 31? (a) 24 (b) 25 (c) 6 (d) 31
Answer key
- 42
- 19
- 10
- 8
- 9
- 6
- 17
- 7
- 15
- 22
- 10
- 20
- 1
- 10
- 9
- 19
- 17
- 11
- 7
- 15
- 10
- 19
- 12
- 14
- 10
- 11
- 10
- 17
- 18
- 7
- 24
- 17
- 31
- 6
- 10
- 11
- 16
- 19
- 20
- 24
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