A Pie Chart Is a Chart That Displays Data in Bars

question 55

True/False

A pie chart is a chart that displays data in bars positioned horizontally or vertically.

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Definitions:

Sample Coefficient

A numerical measure that describes some characteristic or aspect of a sample of data.

Sample Covariance

A measure of the degree to which two variables change together for a sample of a population, indicating their linear relationship.

Cov (x,y)

Represents the covariance between two variables \(x\) and \(y\), measuring how changes in one variable are associated with changes in another.

Covariance

A statistical measure that indicates the extent to which two variables change together; if the greater values of one variable mainly correspond with the greater values of the other variable, and the same holds for the lesser values, the covariance is positive.