Using the company records for the past 500 working days, the manager of Konig Motors, a suburban automobile dealership, has summarized the number of cars sold per day into the following table:
|
Number of Cars
Sold per Day
|
Frequency of
Occurrence
|
|
0
|
40
|
|
1
|
100
|
|
2
|
142
|
|
3
|
66
|
|
4
|
36
|
|
5
|
30
|
|
6
|
26
|
|
7
|
20
|
|
8
|
16
|
|
9
|
14
|
|
10
|
8
|
|
11
|
2
|
|
Total
|
500
|
a. Form the probability distribution for the number of cars sold per day?
b. Compute the mean or expected number of cars sold per day?
c. Compute the standard deviation?