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

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

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

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

1.Data: 4, 14, 13, 5, 4. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 5; mode 4; range 10

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 4, 4, 5, 13, 14 → median 5
  3. Mode: 4
  4. Range: 14 − 4 = 10
2.Data: 17, 12, 14, 16, 16. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 15; median 16; mode 16; range 5

  1. Mean: 75 ÷ 5 = 15
  2. Ordered: 12, 14, 16, 16, 17 → median 16
  3. Mode: 16
  4. Range: 17 − 12 = 5
3.Data: 19, 14, 13, 6, 8. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 12; median 13; mode no mode; range 13

  1. Mean: 60 ÷ 5 = 12
  2. Ordered: 6, 8, 13, 14, 19 → median 13
  3. Mode: no mode
  4. Range: 19 − 6 = 13
4.Data: 9, 18, 19, 8, 11. Find the (a) mean, (b) median, (c) mode and (d) range.

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

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 8, 9, 11, 18, 19 → median 11
  3. Mode: no mode
  4. Range: 19 − 8 = 11
5.Data: 11, 13, 18, 18, 15. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 15; median 15; mode 18; range 7

  1. Mean: 75 ÷ 5 = 15
  2. Ordered: 11, 13, 15, 18, 18 → median 15
  3. Mode: 18
  4. Range: 18 − 11 = 7
6.Data: 2, 1, 5, 1, 6. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 3; median 2; mode 1; range 5

  1. Mean: 15 ÷ 5 = 3
  2. Ordered: 1, 1, 2, 5, 6 → median 2
  3. Mode: 1
  4. Range: 6 − 1 = 5
7.Data: 9, 8, 15, 20, 8. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 12; median 9; mode 8; range 12

  1. Mean: 60 ÷ 5 = 12
  2. Ordered: 8, 8, 9, 15, 20 → median 9
  3. Mode: 8
  4. Range: 20 − 8 = 12
8.Data: 15, 6, 3, 5, 11. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 6; mode no mode; range 12

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 3, 5, 6, 11, 15 → median 6
  3. Mode: no mode
  4. Range: 15 − 3 = 12
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