Final answer:
The information sufficient to calculate the slope for the best fitting regression line includes the x-coordinates and y-coordinates of the data points.
Step-by-step explanation:
The information sufficient to calculate the slope for the best fitting regression line includes:
- The x-coordinates (independent variable) of the data points
- The y-coordinates (dependent variable) of the data points
Using these coordinates, you can use a statistical process called regression to calculate the slope of the best-fit line.
The slope represents how the dependent variable changes for every one unit increase in the independent variable, on average.