Examlex
Which communication channel allows online users to exchange messages immediately,even while they are working in another program or application?
Coefficient Of Variation
A measure of relative variability computed by dividing the standard deviation by the mean and multiplying by 100.
Variance
A statistical measure of the dispersion of a set of data points, calculated as the average of the squared differences from the mean.
Coefficient Of Correlation
A statistical measure that calculates the strength and direction of the relationship between two variables, often represented by the symbol 'r'.
Coefficient Of Determination
A statistical measure that assesses the proportion of variance in a dependent variable that is predictable from the independent variable(s).
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