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7. [-/0.33 Points] DETAILS BBUNDERSTAT12 9.1.018.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Do larger universities tend to have more property crime? University crime statistics are affected by a variety of factors. The surrounding community, accessibility given to outside visitors, and many other factors influence crime rate. Let x be a variable that represents student enrollment (in thousands) on a university campus, and let y be a variable that represents the number of burglaries in a year on the university campus. A random sample of n = 8 universities in California gave the following information about enrollments and annual burglary incidents. 13.3 28.4 45 14.3 75 277 16 2 201 69 39 23 30 25 LA USE SALT (a) Make a scatter diagram of the data. Then visualize the line you think best fits the data. 70 50 50 y (annual number of burglaries) 10 30 20 10 15 20 25 O x (student enrollment (in thousands)) 25 20 y (annual number of burglaries) 15 10 20 30 40 50 60 70 O x (student enrollment (in thousands)) 70 50 y (annual number of burglaries) 40 30 20 10 15 20 25 O x (student enrollment (in thousands)) 25 20 y (annual number of burglaries) 15 10 20 30 40 50 60 70 O x (student enrollment (in thousands)) (b) Use a calculator to verify that Ex = 152.0, Ex2 = 3278.18, Ey= 241, Ey2 = 9411 and Exy= 5265.5