<BACK
Improvement
Methods
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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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PRIMARY EXAMPLES:
INTERMEDIATE
EXAMPLES:
JUNIOR
HIGH EXAMPLES:
ADULT
EXAMPLES: |
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