Explanation
The
visualization of data shown in a simple table originally produced in
1895 and represented in Muller v.
Oregon (208
US 412) 1907, sometimes called "the Brandeis brief."
The
visualization is a horizontal bar plot whose vertical axis is ordinal
values of weekly hours worked by 4376 women in 279
establishments.
- Although
the data range up to 80, a value of 100 gives more space for the
bars.
- The
vertical axis labels are reasonably aligned vertically so the fractions
are clearly visible.
- The horizontal axis
could also be labeled above (but Excel doesn't support this).
- The rows of the graphic are reversed from the
order of the original 'table,' with largest values at the top.
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Insights
- The graphic makes the distribution of hours by
establishment much easier to see.
- Very few of the establishments offer employees an
8-hour day.
- The median establishment is about 10 hours per
day.
- The original intervals are ambiguous: they
overlap except for the top 2 intervals.
- Would reversing the order of the rows facilitate
viewing the graphic as a 'histogram'?
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