Data Collected from a Random Set of 8 Students on the Number

Short Answer

Data collected from a random set of 8 students on the number of hours they put in for a course and the score they obtained in the final exam of that course below.
(A) Find the sample correlation coefficient between the two variables.
(B) If you calculate the regression line using $\mathrm{x}$ as the independent variable and $\mathrm{y}$ as the dependent variable, what will be sign of the slope of the regression line?
What can you tell about the magnitude of the slope?
Data on hours worked and final exam score: