A study of the weekly car sales from last year resulted in the following information. Only once did the dealership sell no cars in a week. Three times they sold only 1 car, five times they sold 2 cars, eight times they sold 3 cars, they never sold 4 cars, eleven times they sold 5 cars, twenty times they sold 6 cars, they never sold 7 cars, three times they sold 8 cars and one time they sold 9 cars.

Weekly Car Sales

x	Frequency	P(x)
0	1
1	3
2	5

3	8
4	0
5	11
6	20
7	0
8	3
9	1
Totals	52	= 1