To determine which point is the outlier in the given scatterplot, we should look for a point that is significantly different from the other points.
Given the points:
- (1, 78)
- (0.5, 45)
- (2.5, 87)
- (4.5, 97)
We can observe the following:
- The point (0.5, 45) stands out because it has a significantly lower score (45) compared to the other points, which are all above 70.
- The other points, (1, 78), (2.5, 87), and (4.5, 97), show a relatively consistent trend of higher scores.
Therefore, the point that is the outlier is (0.5, 45).