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Lesson: Finding the Quartiles of a Data Set

Worksheet: Finding the Quartiles of a Data Set • 15 Questions

Q1:

Determine the median and quartiles of the following set of data: 56, 55, 90, 50, 41, 84, 68, 75, 92, 50, and 71.

  • AThe median is 71, and the quartiles are 55 and 90.
  • BThe median is 68, and the quartiles are 50 and 84.
  • CThe median is 69.5, and the quartiles are 50 and 84.
  • DThe median is 68, and the quartiles are 52.5 and 79.5.

Q2:

Determine the median and quartiles of the following set of data: 1.8, 1.6, 1.1, 2.4, 0.6, 1.3, 2.9, 1.5, 0.4, 1.9, 2.9.

  • AThe median is 1.8, and the quartiles are 1.1 and 2.4.
  • BThe median is 1.6, and the quartiles are 1.1 and 2.4.
  • CThe median is 1.6, and the quartiles are 1.3 and 2.9.
  • DThe median is 1.6, and the quartiles are 0.6 and 1.9.

Q3:

Determine the median and quartiles of the following set of data: 1 350, 1 400, 1 250, 1 050, 1 450, 1 150, 1 000.

  • AThe median is
    1 350
    , and the quartiles are
    1 050
    and
    1 400
    .
  • BThe median is
    1 250
    , and the quartiles are
    1 050
    and
    1 400
    .
  • CThe median is
    1 250
    , and the quartiles are
    1 100
    and
    1 375
    .
  • DThe median is
    1 250
    , and the quartiles are
    1 150
    and
    1 350
    .

Q4:

Determine the upper and the lower quartiles of the following set of data: 114, 103, 50, 52, 95, 103, 93, 53, 65, 57, 52, 89, 111, 89, and 96.

  • Alower quartile , upper quartile
  • Blower quartile , upper quartile
  • Clower quartile , upper quartile
  • Dlower quartile , upper quartile
  • Elower quartile , upper quartile

Q5:

Determine the upper and the lower quartiles of the following set of data: 19.4, 42.1, 56.1, 27.5, 5.3, 49.9, 48.8, 44.3, 13.1, 15.4, 20.1, 4.1, 38.1, 33.8, and 41.5.

  • Alower quartile = 4.1, upper quartile = 44.3
  • Blower quartile = 33.8, upper quartile = 44.3
  • Clower quartile = 15.4, upper quartile = 44.3
  • Dlower quartile = 15.4, upper quartile = 33.8
  • Elower quartile = 4.1, upper quartile = 33.8
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