A football team's season ticket sales, percentage of games won, and number of active alumni for the years 1992-2000 are given below:
Year Season Ticket Sales Percentage of Games Won Number of Active Alumni
1992 4,995 40 N/A
1993 8,599 54 N/A
1994 8,479 55 N/A
1995 8,419 58 N/A
1996 10,253 63 N/A
1997 12,457 75 6,315
1998 13,285 36 6,860
1999 14,177 27 8,423
2000 15,730 63 9,000
(a) Interpret the correlation between each set of variables.
(b) Calculate: Regression sales = Percentage of games won.
(c) Calculate: Regression sales = Number of active alumni.