In 2011, the population of Mali was about 1.584 x 107 people. What is this number written in standard notation?

A) Data set A

Step-by-step explanation:

Residuals describe how far each point is from the regression line.  The farther each point is from the line, the worse the fit; the closer each point is to the line, the better the fit.

Graph B has points that are not tightly centered around a line.  This is not a good fit.

Graph C has a U-shape; it is not a good fit.

Graph A, however, shows us that all of the points are tightly centered around a line; this is a good fit.