SOLUTION: From the table below, find Prof. Aker’s expected mean lateness. (5 points) Lateness P(Lateness) On time (0 minutes) 4/5 10 minutes

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Question 1198219: From the table below, find Prof. Aker’s expected mean lateness. (5 points)
Lateness P(Lateness)
On time (0 minutes) 4/5
10 minutes 1/10
20 minutes 1/20
30 minutes 1/20

Answer by ikleyn(52884) About Me  (Show Source):
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From the table below, find Prof. Aker’s expected mean lateness. (5 points)
Lateness P(Lateness)
On time (0 minutes) 4/5
10 minutes 1/10
20 minutes 1/20
30 minutes 1/20
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mean lateness = 0%2A%284%2F5%29 + 10%2A%281%2F10%29 + 20%2A%281%2F20%29 + 30%2A%281%2F20%29 = 0 + 1 + 1 + 1.5 = 3.5 minutes.


Nothing complicated - simply use the definition of the mean value of the given distribution.