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

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

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

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

1.Data: 20, 7, 15, 10, 3. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 11; median 10; mode no mode; range 17

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 3, 7, 10, 15, 20 → median 10
  3. Mode: no mode
  4. Range: 20 − 3 = 17
2.Data: 17, 18, 20, 19, 1. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 15; median 18; mode no mode; range 19

  1. Mean: 75 ÷ 5 = 15
  2. Ordered: 1, 17, 18, 19, 20 → median 18
  3. Mode: no mode
  4. Range: 20 − 1 = 19
3.Data: 4, 8, 7, 17, 4. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 7; mode 4; range 13

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 4, 4, 7, 8, 17 → median 7
  3. Mode: 4
  4. Range: 17 − 4 = 13
4.Data: 17, 4, 20, 20, 19. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 16; median 19; mode 20; range 16

  1. Mean: 80 ÷ 5 = 16
  2. Ordered: 4, 17, 19, 20, 20 → median 19
  3. Mode: 20
  4. Range: 20 − 4 = 16
5.Data: 3, 10, 13, 17, 12. Find the (a) mean, (b) median, (c) mode and (d) range.

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

  1. Mean: 55 ÷ 5 = 11
  2. Ordered: 3, 10, 12, 13, 17 → median 12
  3. Mode: no mode
  4. Range: 17 − 3 = 14
6.Data: 2, 8, 12, 3, 5. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 6; median 5; mode no mode; range 10

  1. Mean: 30 ÷ 5 = 6
  2. Ordered: 2, 3, 5, 8, 12 → median 5
  3. Mode: no mode
  4. Range: 12 − 2 = 10
7.Data: 7, 7, 9, 16, 1. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 8; median 7; mode 7; range 15

  1. Mean: 40 ÷ 5 = 8
  2. Ordered: 1, 7, 7, 9, 16 → median 7
  3. Mode: 7
  4. Range: 16 − 1 = 15
8.Data: 7, 5, 5, 18, 15. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 10; median 7; mode 5; range 13

  1. Mean: 50 ÷ 5 = 10
  2. Ordered: 5, 5, 7, 15, 18 → median 7
  3. Mode: 5
  4. Range: 18 − 5 = 13
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