The Correlation Between X and Y May Be Expressed As $\frac{\text{variation around y}} {\text{variation around regression}}$

question 21

Multiple Choice

The correlation between x and y may be expressed as:

• A) r² = 1 - \(\frac{\text{variation around y}} {\text{variation around regression}}\)
• B) r = 1 - \(\frac{\text{variation around y}} {\text{variation around regression}}\)
• C) r² = 1 - \(\frac{\text{variation around regression}} {\text{variation around the mean of y}}\)
• D) r = 1 - \(\frac{\text{variation around regression}}
• {\text{variation around y}}\)