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8th Grade Mean, Median, Mode and Range Worksheet — Level 3 — Practice Set 3 — Answers

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Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Mean, Median, Mode & Range

8th Grade Mean, Median, Mode and Range Worksheet — Level 3 — Practice Set 3 — Answers

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

1.Data: 49, 27, 1, 28, 9, 23, 14. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 21.57; median 23; mode no mode; range 48

  1. Mean: 151 ÷ 7 = 21.57
  2. Ordered: 1, 9, 14, 23, 27, 28, 49 → median 23
  3. Mode: no mode
  4. Range: 49 − 1 = 48
2.Data: 18, 1, 28, 13, 31, 7, 2. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 14.29; median 13; mode no mode; range 30

  1. Mean: 100 ÷ 7 = 14.29
  2. Ordered: 1, 2, 7, 13, 18, 28, 31 → median 13
  3. Mode: no mode
  4. Range: 31 − 1 = 30
3.Data: 39, 7, 18, 33, 11, 25, 24. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 22.43; median 24; mode no mode; range 32

  1. Mean: 157 ÷ 7 = 22.43
  2. Ordered: 7, 11, 18, 24, 25, 33, 39 → median 24
  3. Mode: no mode
  4. Range: 39 − 7 = 32
4.Data: 43, 23, 12, 4, 22, 33. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 22.83; median 22.5; mode no mode; range 39

  1. Mean: 137 ÷ 6 = 22.83
  2. Ordered: 4, 12, 22, 23, 33, 43 → median 22.5
  3. Mode: no mode
  4. Range: 43 − 4 = 39
5.Data: 37, 30, 9, 35, 1, 32. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 24; median 31; mode no mode; range 36

  1. Mean: 144 ÷ 6 = 24
  2. Ordered: 1, 9, 30, 32, 35, 37 → median 31
  3. Mode: no mode
  4. Range: 37 − 1 = 36
6.Data: 31, 9, 43, 47, 25, 23, 45. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 31.86; median 31; mode no mode; range 38

  1. Mean: 223 ÷ 7 = 31.86
  2. Ordered: 9, 23, 25, 31, 43, 45, 47 → median 31
  3. Mode: no mode
  4. Range: 47 − 9 = 38
7.Data: 22, 19, 47, 25, 18, 39. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 28.33; median 23.5; mode no mode; range 29

  1. Mean: 170 ÷ 6 = 28.33
  2. Ordered: 18, 19, 22, 25, 39, 47 → median 23.5
  3. Mode: no mode
  4. Range: 47 − 18 = 29
8.Data: 1, 47, 50, 47, 34, 34. Find the (a) mean, (b) median, (c) mode and (d) range.

Answer: mean 35.5; median 40.5; mode 34 and 47; range 49

  1. Mean: 213 ÷ 6 = 35.5
  2. Ordered: 1, 34, 34, 47, 47, 50 → median 40.5
  3. Mode: 34 and 47
  4. Range: 50 − 1 = 49
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