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 is 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 relationship is called a positive correlation because as one variable increases, the other variable also increases. Option A describes a negative correlation where the line slopes downwards to the right, and option C describes an inverse relationship where as one variable increases, the other decreases. Option D is incorrect because if two variables are directly related, their graph will have a positive slope. Therefore, option B is the only correct statement.

Which of the Following Statements Is Correct