Question

A scatter plot contains a trend line that crosses through points (-1, 7) and (1, 3). Does this trend line illustrate a correlation? A. Yes, there is a positive correlation. B. Yes, there is a negative correlation. C. No, there is no correlation. D. There is not enough information.

Answer 1

B. Yes, there is a negative correlation. If you plot the ordered pairs (-1,7) and (1,3) on a graph and put a line through the points you can see the line goes downward making it a negative correlation.