Which of the Following Is a Definition of the Covariance

question 8

Multiple Choice

Which of the following is a definition of the covariance between X and Y?

• A) Correlation between X and Y times variance of X times variance of Y
• B) Variance of X times the variance of Y
• C) Correlation between X and Y divided by the product of the standard deviation of X and the standard deviation of Y
• D) Correlation between X and Y times standard deviation of X times standard deviation of Y

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Definitions:

Equal Sign

A symbol (=) used in mathematics to indicate that two expressions are equal in value.

Link Child Fields

The process of associating fields in a child table with fields in a parent table to maintain data integrity in a relational database.

Link Master Fields

In database applications, it relates to the action of creating relationships between master (primary) and detail (secondary) fields to synchronize data.

Option Buttons

Interactive elements within a graphical user interface that allow users to make one selection from a set of predetermined options.