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Year 9 Mean, Median, Mode and Range Worksheet — Level 1 — Practice Set 4 — Answers

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Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Mean, Median, Mode & Range

Year 9 Mean, Median, Mode and Range Worksheet — Level 1 — Practice Set 4 — Answers

Order the data first. Show your working for each measure.

1.Data: 6, 5, 4, 4, 16. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 7; median 5; mode 4; range 12

  1. Mean: 35 ÷ 5 = 7
  2. Ordered: 4, 4, 5, 6, 16 → median 5
  3. Mode: 4
  4. Range: 16 − 4 = 12
2.Data: 3, 7, 9, 8, 8. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 7; median 8; mode 8; range 6

  1. Mean: 35 ÷ 5 = 7
  2. Ordered: 3, 7, 8, 8, 9 → median 8
  3. Mode: 8
  4. Range: 9 − 3 = 6
3.Data: 13, 9, 2, 8, 18. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 10; median 9; mode no mode; range 16

  1. Mean: 50 ÷ 5 = 10
  2. Ordered: 2, 8, 9, 13, 18 → median 9
  3. Mode: no mode
  4. Range: 18 − 2 = 16
4.Data: 19, 6, 7, 16, 2. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 10; median 7; mode no mode; range 17

  1. Mean: 50 ÷ 5 = 10
  2. Ordered: 2, 6, 7, 16, 19 → median 7
  3. Mode: no mode
  4. Range: 19 − 2 = 17
5.Data: 16, 14, 16, 18, 11. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 15; median 16; mode 16; range 7

  1. Mean: 75 ÷ 5 = 15
  2. Ordered: 11, 14, 16, 16, 18 → median 16
  3. Mode: 16
  4. Range: 18 − 11 = 7
6.Data: 5, 15, 6, 20, 9. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 11; median 9; mode no mode; range 15

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 5, 6, 9, 15, 20 → median 9
  3. Mode: no mode
  4. Range: 20 − 5 = 15
7.Data: 8, 16, 7, 20, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14; median 16; mode no mode; range 13

  1. Mean: 70 ÷ 5 = 14
  2. Ordered: 7, 8, 16, 19, 20 → median 16
  3. Mode: no mode
  4. Range: 20 − 7 = 13
8.Data: 12, 10, 9, 7, 12. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 10; median 10; mode 12; range 5

  1. Mean: 50 ÷ 5 = 10
  2. Ordered: 7, 9, 10, 12, 12 → median 10
  3. Mode: 12
  4. Range: 12 − 7 = 5
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