18. the following data come from an experiment to determine if there is a relationship
between the number of hours of television watched (h) and the gpa (g) of students in
high school. use a graphing calculator to find the equation of the line which best fits the
data and gives the gpa as a function of the number of hours of television watched
(g= mh + b). also, find the correlation coefficient for this data and discuss whether or
not the line is a good model for the data.