Question

A study measured the relationship between the size of a truck’s engine (in liters) and its fuel economy (in mpg). It found a correlation coefficient of -0.9187, and a scatterplot of the data appeared to be approximately linear.

Which of the statements below are true? Select all that apply.

		The correlation is strong, so even a small change in engine size is likely to impact fuel economy.
		In general, as engine size increases, fuel economy decreases.
		In general, as engine size decreases, fuel economy decreases.
		The correlation is not strong, so a small change in engine size will not necessarily impact fuel economy.

Answer 1