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Grade 6 Interquartile Range & Mean Absolute Deviation Worksheet with Answers

Grade 6 (US) · Year 7 (UK) · Class 6 (India) · Math

Unit 5: StatisticsMeasures of SpreadCCSS 6.SP.B.5c

Measuring how spread out data is with quartiles, the interquartile range and mean absolute deviation. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Interquartile Range & Mean Absolute Deviation

Grade 6 · Math

Score___ / 12

Name

Class

Date

Learning goal: Measures of Spread · CCSS 6.SP.B.5c

Directions: Use the pictures to help you. Solve each problem. Show your work, then write your answer in the box.

Example

Find the lower quartile (Q1) of: 29, 6, 10, 14, 15, 20, 26

Answer: 10

RememberMean, median, mode and range

23357in order, smallest to largestMean = total ÷ count = 20 ÷ 5 = 4Median = middle value = 3Mode = most often = 3Range = largest − smallest = 7 − 2 = 5
  1. 1

    Find the lower quartile (Q1) of: 30, 18, 11, 30, 18, 27, 8, 14

    81012141618202224262830
    Answer
  2. 2

    Find the interquartile range of: 30, 21, 13, 18, 14, 35, 29, 28

    12141618202224262830323436
    Answer
  3. 3

    Find the upper quartile (Q3) of: 27, 11, 24, 5, 14, 11, 29, 12

    4681012141618202224262830
    Answer
  4. 4

    Find the lower quartile (Q1) of: 28, 12, 26, 7, 33, 34, 27, 38

    510152025303540
    Answer
  5. 5

    Find the upper quartile (Q3) of: 19, 24, 7, 37, 7, 21, 12, 19

    61014182226303438
    Answer
  6. 6

    Find the upper quartile (Q3) of: 8, 1, 1, 22, 27, 36, 20, 31

    0510152025303540
    Answer
  7. 7

    Find the interquartile range of: 5, 20, 19, 1, 18, 15, 12, 9

    02468101214161820
    Answer
  8. 8

    Find the interquartile range of: 13, 39, 35, 2, 21, 12, 1, 30

    0510152025303540
    Answer
  9. 9

    Find the upper quartile (Q3) of: 17, 38, 1, 6, 9, 36, 28, 32

    0510152025303540
    Answer
  10. 10

    Find the upper quartile (Q3) of: 30, 7, 40, 40, 38, 18, 12, 7

    510152025303540
    Answer
  11. 11

    Find the lower quartile (Q1) of: 25, 38, 15, 31, 12, 4, 20, 20

    0510152025303540
    Answer
  12. 12

    Find the upper quartile (Q3) of: 25, 22, 6, 6, 5, 22, 32, 36

    510152025303540
    Answer

★ Challenge corner for fast finishers

A snail climbs 6 feet up a wall each day and slides back 1 foot each night. The wall is 19 feet tall. On which day does it reach the top?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/math/6/mad_iqr

Answer key (click to show)
  1. 1.12.5
  2. 2.13.5
  3. 3.25.5
  4. 4.19
  5. 5.22.5
  6. 6.29
  7. 7.11.5
  8. 8.25.5
  9. 9.34
  10. 10.39
  11. 11.13.5
  12. 12.28.5
  13. ★day 4 (challenge corner)

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