You are a manager at a clothing store and you want to see if there is a relationship between the number of hours your employees work and the number of sales they make. You collect the following data:

Employee	Hours Worked	Sales Made
John	8	100
Mary	10	120
Bob	12	140
Susan	14	160
Tom	16	180

To find the correlation coefficient, you can use the following formula:

Find the linear regression:

r = (n XY - X Y) / ((n X^2 - ( X)^2) * (n Y^2 - ( Y)^2))