Question

Select the value that is not a possible value for a correlation coefficient r.

-0.2

-1

1.2

0.2

0

Answer 1

Correlation coefficient formulas are used to find how strong a relationship is between data. The formulas return a value between -1 and 1, where:

1 indicates a strong positive relationship
-1 indicates a strong negative relationship.
A result of zero indicates no relationship at all.

so 1.2 is not valid