F Distribution
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Description
A frequency distribution that depends upon 2 sets of degrees of freedom - the degrees of freedom in the numerator and the degrees of freedom in the denominator.
The F distribution is used to test whether two population variances are the same. Its characteristics are:
It is continuous.
Its values cannot be negative.
It is positively skewed.
There's a family of F distributions. each time the degrees of freedom in either the numerator or the denominator changes, a new distribution is created.
Concept Prerequisite
Wikipedia Reference
http://en.wikipedia.org/wiki/F-distribution
Learning Material
Covered in Topic(s)
| Analysis of Variance |
| Frequency Distribution Cross Tabs & Hypotheses Testing |