Question

What is the mean of Variable A? Express answer to one decimal place. Scatter plot on a first quadrant coordinate grid. The horizontal axis is labeled Variable A. The vertical axis is labeled Variable B. Points are plotted at (one, six), (two, four), (three, two), (three, five), (four, five), (five, nine), (seven, eight), (eight, seven).

Answer 1

The horizontal axis represents variable A which means that variable A is ploted in the x-axis.
Each point is plotted (x, y) (i.e. the first number represents the value of variable A).
Therefore, the mean of variable A is $\frac{1+2+3+3+4+5+7+8}{8}=33/8=4.1$