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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: 16, 15, 14, 4, 6. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 11; median 14; mode no mode; range 12

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 4, 6, 14, 15, 16 → median 14
  3. Mode: no mode
  4. Range: 16 − 4 = 12
2.Data: 11, 5, 20, 19, 10. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 13; median 11; mode no mode; range 15

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 5, 10, 11, 19, 20 → median 11
  3. Mode: no mode
  4. Range: 20 − 5 = 15
3.Data: 6, 7, 3, 11, 3. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 6; median 6; mode 3; range 8

  1. Mean: 30 ÷ 5 = 6
  2. Ordered: 3, 3, 6, 7, 11 → median 6
  3. Mode: 3
  4. Range: 11 − 3 = 8
4.Data: 15, 17, 18, 11, 14. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 15; median 15; mode no mode; range 7

  1. Mean: 75 ÷ 5 = 15
  2. Ordered: 11, 14, 15, 17, 18 → median 15
  3. Mode: no mode
  4. Range: 18 − 11 = 7
5.Data: 13, 7, 4, 9, 17. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 10; median 9; mode no mode; range 13

  1. Mean: 50 ÷ 5 = 10
  2. Ordered: 4, 7, 9, 13, 17 → median 9
  3. Mode: no mode
  4. Range: 17 − 4 = 13
6.Data: 5, 17, 10, 3, 5. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 5; mode 5; range 14

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 3, 5, 5, 10, 17 → median 5
  3. Mode: 5
  4. Range: 17 − 3 = 14
7.Data: 9, 19, 20, 19, 3. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14; median 19; mode 19; range 17

  1. Mean: 70 ÷ 5 = 14
  2. Ordered: 3, 9, 19, 19, 20 → median 19
  3. Mode: 19
  4. Range: 20 − 3 = 17
8.Data: 20, 19, 11, 3, 17. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14; median 17; mode no mode; range 17

  1. Mean: 70 ÷ 5 = 14
  2. Ordered: 3, 11, 17, 19, 20 → median 17
  3. Mode: no mode
  4. Range: 20 − 3 = 17
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