If Two Variables Were Perfectly Correlated,what Would the Coefficient of Correlation

question 114

Multiple Choice

If two variables were perfectly correlated,what would the coefficient of correlation r equal?

• A)0
• B)-1
• C)1
• D)B or C
• E)none of the above

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Definitions:

Graphical Method

A technique for solving mathematical problems by drawing graphs to visualize relationships between variables.

Equations

Mathematical statements that assert the equality of two expressions, typically including one or more variables.

Substitution

A method for solving systems of equations where one of the equations is solved for one variable in terms of others, and that expression is substituted into the other equation(s).

Equations

Mathematical statements that assert the equality of two expressions, typically involving variables.