I read in the paper that there was a correlation between the

I read in the paper that there was a correlation between the number of passengers on a commercial aircraft and the temperature inside the plane. The article said that r = .67. What kind of relationship is this? (positive, negative, strong, moderate, mild).

Solution

r can be negative or positive or 0

r is a number between -1 and 1

so this relationship is positive

and is more strong when r is more closest to 1