2. A study was done in which the low daily temperature and the number of traffic accidents within the city were recorded.These sample data are shown as follows:

Temperature	Traffic Accidents
25	7
30	4
5	10
0	12
40	3
30	5
24	8
Total:
154	49

(a) Find the least square error line relating Traffic Accidents to Temperature.

1. Estimate the number of accidents if the temperature is 30.

(c) Interpret the meaning of the regression coefficient Beta-hat in this problem.