Solution
- The correlation of points on a graph can be defined in 2 ways:
1. It can be defined as positive or negative if all the points on the graph move or arrange themselves in a certain direction; usually pointing upwards or downwards.
2. It can also be defined as 0 if the points do not appear to be pointing in any certain direction.
- Because of the orientation of the points, we can draw a straight line through the points demonstrating the general direction of the points.
- If we cannot draw a line through the points, then, the correlation of the graph is 0.
This is illustrated below:
- From the above, we cannot draw any lines that would make sense of graph B.
- Thus, graph B has a correlation coefficient of 0
Final Answer
The answer is graph B
