Which of the following statements is correct?
A) When a line slopes downwards moving to the right, the variable measured on the x-axis and the variable measured on the y-axis are directly related.
B) When a line slopes upwards moving to the right, the variable measured on the x-axis and the variable measured on the y-axis are directly related.
C) The higher the temperature, the more ice cream people consume. Thus the temperature and ice cream consumption are inversely related.
D) If two variables are directly related, a graph of the two variables has a negative slope.
E) None of the above statements are correct.

Question

Quizplus · Accepted Answer

When a line slopes upwards moving to the right, the variable measured on the x-axis and the variable measured on the y-axis are directly related. This is because as the value of the variable on the x-axis increases, so does the value of the variable on the y-axis. This relationship is often referred to as a positive correlation. The other statements are incorrect. A negative slope indicates an inverse relationship between the two variables, not a direct one (choice D). And the statement in choice C describes a situation of direct, not inverse, relationship between two variables.

Which of the Following Statements Is Correct