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 = 0.67 means there is a positive moderate relationship between number of passengers and the temperature inside the plane. the relation is not perfectly linear, but positive in nature, i.e. an increase in number of passenger implies most likely an increase in temperature inside the plane.