Archaeologists often find only parts of ancient human remains. For example, they may find a small finger bone, called the metacarpal bone. Is it possible to predict the height of a human from the length of his or her metacarpal bone? To investigate, a researcher measures the heights and metacarpal lengths of 200 adults. In making the scatterplot, the researcher should
A. plot the height of the person on the horizontal axis.
B. plot the metacarpal length on the horizontal axis.
C. first determine if the heights of humans follow a Normal distribution.
D. use a plotting scale that makes the overall trend roughly linear.