The F distribution can be used to describe how the ratio of two sample variances behaves when the two samples have been independently selected from normal populations with the same variance.

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Quizplus · Accepted Answer

The F distribution is indeed used to describe the ratio of two sample variances, especially in the context of ANOVA (Analysis of Variance) tests, where it helps in determining if the variances from two independent samples (assumed to be drawn from normal populations with the same variance) significantly differ from each other.

The F Distribution Can Be Used to Describe How the Ratio