Which of the following is not a possible r-value?

Question

-0.6

0.6

-1.3

0.3

Answer 1

The r-value, or Pearson correlation coefficient, ranges from -1 to 1. Therefore, any value outside this range is not a possible r-value.

In the options you provided:

• -0.6 is a valid r-value.
• 0.6 is a valid r-value.
• -1.3 is not a valid r-value (since it is outside the range).
• 0.3 is a valid r-value.

So the answer is -1.3, as it is not a possible r-value.