Frequency Tables, Frequency Distributions and Graphic Presentation
Frequency Tables, Frequency Distributions and Graphic Presentation
Frequency Tables, Frequency Distributions and Graphic Presentation
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Frequency Table
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Relative Class Frequencies
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Bar Charts
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Pie Charts
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Pie Chart Using Excel
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Frequency Distribution
A Frequency
distribution is a
grouping of data into
mutually exclusive
categories showing
the number of
observations in each
class.
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Frequency Distribution
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EXAMPLE – Creating a Frequency
Distribution Table
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Constructing a Frequency Table -
Example
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Constructing a Frequency Table -
Example
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Constructing a Frequency Table
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Relative Frequency Distribution
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Graphic Presentation of a
Frequency Distribution
Histograms
Frequency polygons
Cumulative frequency distributions
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Histogram
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Histogram Using Excel
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Frequency Polygon
A frequency polygon
also shows the shape
of a distribution and is
similar to a histogram.
It consists of line
segments connecting
the points formed by
the intersections of the
class midpoints and the
class frequencies.
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Cumulative Frequency Distribution
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Cumulative Frequency Distribution
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Exercise
27,27,27,28,27,25,25,28,26,28,26,28,31,30,26,26,
29,29,28,31,29,27,28
How many class would you suggest?
What class interval would you suggest?
Make its frequency distribution.
Make its graphic representation.
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