Answer:
scatter plot-4 represents the best model for the scatter plot.
Explanation:
A line of best fit (or "trend" line) is a straight line that best represents the data on a scatter plot.
This line may pass through some of the points, none of the points, or all of the points.
Clearly from the given graph we could see that the scatter plot 4 have equal number of points above and below the line.
Hence, scatter plot 4 is the best model for the scatter plot.