Describe the correlation in the data represented in the scatter plot below.
Make a scatter plot of the set of points.
Describe the correlation in the data you graphed in the previous item.
The set {(2, 58), (6, 105), (8, 88), (8, 118), (12, 117), (16, 137), (20, 157), (20, 169)} is graphed below.
Sketch a trend line to model the data. Use a contrasting color.
Writing: How can you determine whether two variables x and y for a real-life situation are correlated?
Analysis: Do you think a trend line on a graph is always the same as the line of best fit? Why or why not?
Compare and Contrast: What is the difference between a positive correlation and a negative correlation?
How might you relate positive correlation with direct variation?
Reflection: Math Success
