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

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Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Mean, Median, Mode & Range

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

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

1.Data: 15, 4, 20, 5, 16. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 12; median 15; mode no mode; range 16

  1. Mean: 60 ÷ 5 = 12
  2. Ordered: 4, 5, 15, 16, 20 → median 15
  3. Mode: no mode
  4. Range: 20 − 4 = 16
2.Data: 11, 7, 20, 9, 8. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 11; median 9; mode no mode; range 13

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 7, 8, 9, 11, 20 → median 9
  3. Mode: no mode
  4. Range: 20 − 7 = 13
3.Data: 9, 8, 1, 20, 17. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 11; median 9; mode no mode; range 19

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 1, 8, 9, 17, 20 → median 9
  3. Mode: no mode
  4. Range: 20 − 1 = 19
4.Data: 8, 9, 5, 7, 11. Find the (a) mean, (b) median, (c) mode and (d) range.

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

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 5, 7, 8, 9, 11 → median 8
  3. Mode: no mode
  4. Range: 11 − 5 = 6
5.Data: 16, 19, 15, 10, 10. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14; median 15; mode 10; range 9

  1. Mean: 70 ÷ 5 = 14
  2. Ordered: 10, 10, 15, 16, 19 → median 15
  3. Mode: 10
  4. Range: 19 − 10 = 9
6.Data: 18, 14, 7, 6, 20. Find the (a) mean, (b) median, (c) mode and (d) range.

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

  1. Mean: 65 ÷ 5 = 13
  2. Ordered: 6, 7, 14, 18, 20 → median 14
  3. Mode: no mode
  4. Range: 20 − 6 = 14
7.Data: 16, 5, 17, 5, 2. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 9; median 5; mode 5; range 15

  1. Mean: 45 ÷ 5 = 9
  2. Ordered: 2, 5, 5, 16, 17 → median 5
  3. Mode: 5
  4. Range: 17 − 2 = 15
8.Data: 10, 13, 13, 20, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 15; median 13; mode 13; range 10

  1. Mean: 75 ÷ 5 = 15
  2. Ordered: 10, 13, 13, 19, 20 → median 13
  3. Mode: 13
  4. Range: 20 − 10 = 10
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