The line of best fit for the data can be modeled by the equation:

Grade= 0.6*Hours + 47 (r = 0.91)

Using the given model determine a student's grade in the course if they study for 70 hoursduring the semester. Round to the nearest tenth.

Using the given model, determine the number of hours a student would need to study to earn a gradeof 72% in the course.

What can a student expect their grade to be if they study for zero hours all semester?

How much can a student expect to improve their grade for each additional hour they study?

Do you feel there is a causal relationship between the two variables?