19. The probability distribution for the number of automobiles lined up at a Lakeside Olds deale

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 1.     The probability distribution for the number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 a.m.) for service is:

 

 

 Number
Probability
1
0.05
2
0.30
3
0.40
4
.25
 

On a typical day, how many automobiles should Lakeside Olds expect to be lined up at opening time? Use expected value or mean of the probability distribution.

 

•    

 

2.85

•    

 

1.00

•    

 

1.96

•    

 

10.00

 
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