BoxandWhisker Plots

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Box-and-Whisker Plots
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A box-and-whisker plot is a type of graph that
uses medians to break data into fourths called
quartiles.
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Median

• A median is the middle number when a set of data
  is put in order. The median splits the data in
  half.

3 6 12 19 22 34 56 56 67 98 100
What is the median?
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Median

• A median is the middle number when a set of data
  is put in order. The median splits the data in
  half.

3 6 12 19 22 34 56 56 67 98 100
What is the median of the first half?
What is the median of the second half?
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Median

• A median is the middle number when a set of data
  is put in order. The median splits the data in
  half.

3 6 12 19 22 34 56 56 67 98 100
minimum
maximum
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A box-and-whisker plot is a type of graph that
uses medians to break data into fourths called
quartiles.
minimum
maximum
7
A box-and-whisker plot is a type of graph that
uses medians to break data into fourths called
quartiles.
8
A box-and-whisker plot is a type of graph that
uses medians to break data into fourths called
quartiles.
9
A box-and-whisker plot is a type of graph that
uses medians to break data into fourths called
quartiles.
10
Examples
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