Section 1 (Problems solving): Problem 1 The number of computers breakdown for the firm ABC can be presented as follow: Based on the last 105 weeks, the number of standby computers at ABC is: Number of Breakdowns Number of Months that the breakdowns Occured Total 105 Table 1: Breakdowns data for the firm ABC Let the average cost of breakdown = AED 200 and the Cost of Service contract, that ensure an expected number of breakdown less than 5 by month, is equal to AED 2000/month. 1- Compute the expected number of breakdowns. 2-Compute the expected breakdown cost per month with no preventive maintenance. 3- Compute the cost of preventive maintenance. 4- Should the firm contract for maintenance on their computers