Which Is Not a Measure of Variability

question 111

Multiple Choice

Which is not a measure of variability?

• A)Mean absolute deviation (MAD)
• B)Range
• C)Coefficient of variation
• D)Trimmed mean

---

Definitions:

Parametric Test

A statistical test that makes assumptions about the parameters of the population distribution from which the sample was drawn.

Wilcoxon Rank Sum Test

A non-parametric statistical test used to compare two independent samples to assess whether their population mean ranks differ.

Wilcoxon Rank-sum Test

A nonparametric statistical test used to compare two independent samples to determine if they come from the same population or not, based on rank sums.

Wilcoxon Rank Sum Test

A non-parametric statistical test used to compare two independent samples to assess whether their populations have identical distribution.