36. The conclation is inappropriate as a measure of association between two quantitative vari- ables.

a) When different people measure the variables using different units.

b) When the relationship is highly nonlinear.

c) When the data points fall exactly on a straight line

d) When the slope of the prediction equation is 0 using nearly all the data, but a couple of outliers are extremely high on Y at the high end of the X scale.

e) When I tends to decrease as X increases. () When we have data for the entire population rather than a sample. g) When the sample has a much narrower range of X-values than does the population.