The following is a scatterplot of the liters of alcohol from drinking wine per person and the death rates from heart disease per 100,000 people for each of 19 countries. the least-squares regression line has been drawn in on the plot.
based on the least-squares regression line we would predict that in a country where, per person, 7 liters of alcohol from wine is consumed, the death rate from heart disease per 100,000 people would be about
a. 50.
b. 100.
c. 260.
d. 700.