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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, 9, 18, 16, 16. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 16; mode 16; range 12

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 6, 9, 16, 16, 18 → median 16
  3. Mode: 16
  4. Range: 18 − 6 = 12
2.Data: 15, 19, 9, 8, 14. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 14; mode no mode; range 11

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 8, 9, 14, 15, 19 → median 14
  3. Mode: no mode
  4. Range: 19 − 8 = 11
3.Data: 19, 9, 3, 14, 10. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 11; median 10; mode no mode; range 16

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 3, 9, 10, 14, 19 → median 10
  3. Mode: no mode
  4. Range: 19 − 3 = 16
4.Data: 12, 9, 15, 15, 14. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 14; mode 15; range 6

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 9, 12, 14, 15, 15 → median 14
  3. Mode: 15
  4. Range: 15 − 9 = 6
5.Data: 9, 17, 10, 9, 20. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 10; mode 9; range 11

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 9, 9, 10, 17, 20 → median 10
  3. Mode: 9
  4. Range: 20 − 9 = 11
6.Data: 6, 2, 16, 2, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 9; median 6; mode 2; range 17

  1. Mean: 45 ÷ 5 = 9
  2. Ordered: 2, 2, 6, 16, 19 → median 6
  3. Mode: 2
  4. Range: 19 − 2 = 17
7.Data: 6, 8, 13, 19, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 13; mode 19; range 13

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 6, 8, 13, 19, 19 → median 13
  3. Mode: 19
  4. Range: 19 − 6 = 13
8.Data: 15, 15, 11, 13, 11. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 13; mode 11 and 15; range 4

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 11, 11, 13, 15, 15 → median 13
  3. Mode: 11 and 15
  4. Range: 15 − 11 = 4
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