If X and Y Are Two Variables with E(XY)= 10

question 230

True/False

If X and Y are two variables with E(XY)= 10.56,E(X)= 4.22,and E(Y)= 5.34,then COV(X,Y)= 1.0.

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Definitions:

Performance Post-Training

The level of an individual's or group's ability and efficiency after undergoing a specific training program.

Utility

The total satisfaction or value derived from consuming a good or service.

Effect Size

A quantitative measure of the magnitude of a phenomenon or the strength of the relationship between variables, often used in statistical analysis to assess the significance of findings.

Standard Deviation

Standard Deviation is a statistical measure that quantifies the amount of variation or dispersion of a set of data points from their mean.