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| HISTOGRAM |
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WHAT
IS IT?
A
bar graph of raw system data. Shows basic information
about the data, such as central location, width
of spread, and shape.
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WHAT
DOES IT LOOK LIKE?
Examples
- See Below
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WHEN
IS IT USED?
- Do
you have a data set of related values, either
attributes (counts) or variables data (measurement)?
- Is
it important to visualize central location,
shape, and spread of the data?
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HOW
IS IT MADE?
- Select
the classes.
- Record
the data.
- Prepare
the axes.
- Draw
the histogram.
- Study
the shape.
- Calculate
the statistics.
- Compare
your histogram to the normal distribution.
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| EXAMPLES: |
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