Statistics for Maintenance Modelling: Renewal Processes

# Hint¤

The solution can be found easily by following these three steps.

1. First you need to calculate the distribution function for each of the probabilities p1 to p3 where Fn = p1 + p2 +...+ pn.
2. Then you need to use these and substitute into the equation Mn = Fn + Mn - k pk for n = 1 to 10. For instance,
   M3 = F3 + p1M2 + p2M1 (note that M0 = 0).
3. Finally you need to calculate the cost per unit time for each n, the lowest one being the optimal! For instance, the cost for year 3 = (cb + cf M2)/3

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