Question

Home heating costs and outside temperatures for 15 families are shown in the scatterplot below.

Which statement BEST describes these data?

There is a constant correlation between the outside temperature and the heating cost.

There is a negative correlation between the outside temperature and the heating cost.

There is no correlation between the outside temperature and the heating cost.

There is a positive correlation between the outside temperature and the heating cost.

Answer 1

Because cost goes down as temperature increases there is a negative correlation between cost and outside temperature.