A car owners" club which offers a rescue service for stranded motorists has to make a decision on the number of breakdown patrols to deploy between midnight and 8 a.m. on weekdays during the summer. The number of requests for assistance received by a local office during these hours follows the probability distribution shown below.
|
No. of requests received
|
0
|
1
|
2
|
3
|
4
|
5
|
|
Probability
|
0.01
|
0.12
|
0.25
|
0.42
|
0.12
|
0.08
|
(a) Calculate the expected number of requests received and interpret your results.
(b) Is this a discrete or a continuous probability distribution?