The Following Scatterplot Shows the Relationship Between the Left and Right

Multiple Choice

The following scatterplot shows the relationship between the left and right forearm lengths (cm) for 55 college students along with the regression line, where y = left forearm length x = right forearm length. (Source: physical dataset on the CD.) Which is the appropriate equation for the regression line in the plot?

A) $\hat{y}$ = 1.22 + 0.95x
B) $\hat{y}$ = 1.22 -0.95x
C) $\hat{x}$ = 1.22 + 0.95y
D) $\hat{x}$ = 1.22 - 0.95y