Question - George Ragsdale sells new cars for Seekins Ford. George usually sells the largest number of cars on Saturday. He has developed the following probability distribution for the number of cars he expects to sell on a particular Saturday.
|
Number of cars sold, Y
|
0
|
1
|
2
|
3
|
4
|
|
Probability, P(y)
|
0.10
|
0.20
|
0.30
|
0.30
|
0.10
|
A) Find the mean of Y, or E(Y).
B) Find the variance of Y, or V(Y).
C) Find the standard deviation of Y, or sd(Y).