Res 710 Skewness Kurtosis & variability Distribution Graph

Skewness and Kurtosis !|! !|!




Description of skewness and kurtosis with the distribution graph using the data from your Wk 3
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Mean, Median, and Mode assignment.
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Distribution graph for the two examples.
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Example 1
No. of persons
35
30
25
20
15
10
5
0
180 200 250 280 300 350

X(Income)


Using the data from example 1 appears to have an approximately normal distribution with a
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sharper peak than example 2. The Kurtosis can be termed as leptokurtic.
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Example 2
No. of persons
35
30
25
20
15
10
5
0
180 200 250 280 300 350

X(Income)


The distribution of example 2 data appears to have a negative skew and a large kurtosis. The
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peak is wider than that of example 1 data.
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