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Characteristics of the F-distribution

1. It is not symmetric. The F-distribution is skewed right. That is, it is positively skewed.

2. The shape of the F-distribution depends upon the degrees of freedom in the numerator and denominator. This is similar to the distribution and Student's t-distribution, whose shape depends upon their degrees of freedom.

3. The total area under the curve is 1.

4. The values of F are always greater than or equal to zero. That is F distribution can not be negative.

5. It is asymptotic. As the value of X increases, the F curve approaches the X axis but never touches it. This is similar to the behavior of normal probability distribution.

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