Some students in a school were surveyed to determine how many hours they study per night and their grade-point averages. The results are shown in the table.
If the data are entered into a regression calculator, what is the approximate y-intercept of the resulting regression line?
It appears either the teacher provided the calculator result or you did so yourself. Either way, the regression equation is approximately y = 0.628x + 1.759
The equation is in slope intercept form y = mx+b m = slope = 0.628 b = y intercept =Â 1.759Â
The value 1.759 rounds to 1.76 which is the answer
