Question

If Candace made a scatter plot of the math scores of eighth-grade students (vertical scale) and their heights in inches (horizontal scale), what type of line of best fit should she expect the scatter plot show?
A. a line with positive slope
B. a line with negative slope
C. a horizontal line
D. There would be no line of best fit.

Answer 1

@whpalmer4

Answer 2

It does seem hard to think that there should be any sort of correlation between height and math scores in some population of kids presumably of essentially equal age. I would expect there to be just a cloud of data points smeared across the graph. That said, you probably could construct a reasonable horizontal line that went through the middle that had about half the points above and half below.

Answer 3

Thank you very much :)