Consider the Sample Regression Equation: ,With an R² Value

question 80

Multiple Choice

Consider the sample regression equation: ,with an R² value of 0.81.What is the value of the correlation coefficient between x and y?

• A)-0.90
• B)-0.81
• C)0.81
• D)0.90

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Definitions:

Common Difference

The difference between successive terms in an arithmetic sequence.

Arithmetic Sequence

An arithmetic sequence is a sequence of numbers in which each term after the first is obtained by adding a constant difference to the preceding term.

Common Difference

The steady gap found between successive numbers in an arithmetic progression.

Common Ratio

In a geometric sequence, the consistent factor by which each term is multiplied to produce the next term.