Question: Mary Sue wants to know if there is a connection between attendance at craft fairs and the number of exhibitors who have booths at the fair. For a random sample of seven local craft fairs, she chose a random day of the fair and recorded the number of exhibitors. In the data below, x represents the number of exhibitors and y represents the attendance in hundreds of people.

a) Draw the scatter diagram for the data.

b) Calculate the sample correlation coefficient, r.

c) Calculate the coefficient of determination, r².

d) What does the coefficient of determination tell you about the variation in attendance and the variation in the number of exhibitors?