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Year 9 Mean, Median, Mode and Range Worksheet — Level 1 — Practice Set 2 — 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 2 — Answers

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

1.Data: 17, 4, 5, 8, 6. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 6; mode no mode; range 13

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 4, 5, 6, 8, 17 → median 6
  3. Mode: no mode
  4. Range: 17 − 4 = 13
2.Data: 16, 5, 15, 5, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 12; median 15; mode 5; range 14

  1. Mean: 60 ÷ 5 = 12
  2. Ordered: 5, 5, 15, 16, 19 → median 15
  3. Mode: 5
  4. Range: 19 − 5 = 14
3.Data: 11, 16, 4, 15, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 15; mode no mode; range 15

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 4, 11, 15, 16, 19 → median 15
  3. Mode: no mode
  4. Range: 19 − 4 = 15
4.Data: 11, 5, 6, 9, 9. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 9; mode 9; range 6

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 5, 6, 9, 9, 11 → median 9
  3. Mode: 9
  4. Range: 11 − 5 = 6
5.Data: 11, 20, 12, 10, 17. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14; median 12; mode no mode; range 10

  1. Mean: 70 ÷ 5 = 14
  2. Ordered: 10, 11, 12, 17, 20 → median 12
  3. Mode: no mode
  4. Range: 20 − 10 = 10
6.Data: 4, 18, 15, 14, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14; median 15; mode no mode; range 15

  1. Mean: 70 ÷ 5 = 14
  2. Ordered: 4, 14, 15, 18, 19 → median 15
  3. Mode: no mode
  4. Range: 19 − 4 = 15
7.Data: 15, 14, 11, 2, 18. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 12; median 14; mode no mode; range 16

  1. Mean: 60 ÷ 5 = 12
  2. Ordered: 2, 11, 14, 15, 18 → median 14
  3. Mode: no mode
  4. Range: 18 − 2 = 16
8.Data: 14, 3, 7, 18, 8. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 10; median 8; mode no mode; range 15

  1. Mean: 50 ÷ 5 = 10
  2. Ordered: 3, 7, 8, 14, 18 → median 8
  3. Mode: no mode
  4. Range: 18 − 3 = 15
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