Question 1198219
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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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<pre>
mean lateness = {{{0*(4/5)}}} + {{{10*(1/10)}}} + {{{20*(1/20)}}} + {{{30*(1/20)}}} = 0 + 1 + 1 + 1.5 = 3.5 minutes.
</pre>


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