The Coefficient of Variation, Expressed as a Percent, Is Used $$\text { coefficient of variation } = 100 ( \mathrm {~s} / \overline { \mathrm { x } } )$$

question 61

Multiple Choice

The coefficient of variation, expressed as a percent, is used to describe the standard deviation relative to the mean. It allows us to compare variability of data sets with different measurement units and is calculated as follows: $$\text { coefficient of variation } = 100 ( \mathrm {~s} / \overline { \mathrm { x } } )$$ Find the coefficient of variation for the following sample of weights (in pounds) : $$\begin{array} { l l l l l } 138 & 134 & 186 & 105 & 197 \\136 & 172 & 152 & 116 & 125\end{array}$$

• A) 22.7%
• B) 25.4%
• C) 20.7%
• D) 18.2%

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Definitions:

Social Class

A division of society based on social and economic status, affecting individuals' opportunities, behavior, and lifestyle.

Social Class

A division of a society based on social and economic status, often determining access to resources and opportunities.

Hierarchy

A system in which members of an organization or society are ranked according to relative status or authority.

Social Mobility

The movement of individuals, families, or groups through a system of social hierarchy or stratification.