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Box and whisker plots

Grades 6 and 7 (GCSE Higher tier in England) · 16 questions · Common Core: 6.SP.B.4, 6.SP.B.5.C, 7.SP.B.3, 7.SP.B.4 · England: GCSE Higher Statistics, KS3 Statistics, GCSE Foundation Statistics

Name

Date

Score/ 16

  1. Question 1

    Minutes of daily reading. Sam's group: 26, 30, 23, 19, 11, 28, 18. Ana's group: 33, 37, 27, 26, 17, 34, 25. Using medians, which group typically reads for longer?

    • A. Sam's group
    • B. Ana's group
    • C. They are the same

  2. Question 2

    Find the median: 23, 8, 29, 10, 15, 28

    Answer

  3. Question 3

    A box plot shows: minimum 8, Q1 10, median 18, Q3 25, maximum 27. What is the interquartile range?

    Answer

  4. Question 4

    A box plot of reaction times (hundredths of a second) shows: minimum 13, Q1 15, median 22, Q3 31, maximum 37. About what percentage of the data is greater than 31?

    Answer

  5. Question 5

    Two basketball players' points per game: Zoe has median 18 and IQR 9; Leo has median 18 and IQR 12. Who is more consistent?

    • A. Zoe
    • B. Leo

  6. Question 6

    Find the interquartile range (IQR) of: 50, 38, 47, 10, 36, 12, 16, 49, 38

    Answer

  7. Question 7

    Find the lower quartile (Q1) of: 45, 23, 34, 19, 34, 19, 24, 35, 45, 33, 40

    Answer

  8. Question 8

    Find the lower quartile (Q1) of: 4, 14, 24, 26, 26, 27, 30

    Answer

  9. Question 9

    Minutes of daily reading. Hiro's group: 29, 19, 11, 29, 17, 19, 26. Felix's group: 37, 25, 18, 36, 25, 26, 35. Using medians, which group typically reads for longer?

    • A. Hiro's group
    • B. Felix's group
    • C. They are the same

  10. Question 10

    Find the median: 18, 19, 33, 12, 13, 28, 34, 31

    Answer

  11. Question 11

    A box plot shows: minimum 7, Q1 13, median 20, Q3 28, maximum 30. What is the median?

    Answer

  12. Question 12

    A box plot of reaction times (hundredths of a second) shows: minimum 10, Q1 17, median 21, Q3 28, maximum 43. What is the range?

    Answer

  13. Question 13

    Two basketball players' points per game: Omar has median 18 and IQR 10; Hana has median 18 and IQR 13. Who is more consistent?

    • A. Omar
    • B. Hana

  14. Question 14

    Find the interquartile range (IQR) of: 46, 13, 28, 22, 35, 41, 22, 33, 35, 47

    Answer

  15. Question 15

    Find the lower quartile (Q1) of: 36, 27, 44, 11, 14, 10, 40

    Answer

  16. Question 16

    Find the interquartile range of: 3, 6, 9, 9, 12, 12, 17, 25, 28, 35, 37

    Answer

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Answer key: Box and whisker plots

  1. 1. B. Ana's group

  2. 2. 19

  3. 3. 15

  4. 4. 25

  5. 5. A. Zoe

  6. 6. 34

  7. 7. 23

  8. 8. 14

  9. 9. B. Felix's group

  10. 10. 23.5

  11. 11. 20

  12. 12. 33

  13. 13. A. Omar

  14. 14. 19

  15. 15. 11

  16. 16. 19