JET+Copies

# JET+Copies - 4.243 weeks 3 Revenue lost per day the copier...

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1. Number of days needed to repair the copier when it breaks (average) Repair Time (days)  Probability Contribution to average repair time 1 0.20 0.20 2 0.45 0.90 3 0.25 0.75 4 0.10 0.40 1.00 2.25 2. Number of weeks between breakdowns (average) Number of weeks Cumulative chance of breakdow Simplified 0 0 * 0/18 * 1/2 0 1 1 * 1/18 * 1/2 1/36 2 2 * 2/18 * 1/2 4/36 3 3 * 3/18 * 1/2 9/36 4 4 * 4/18 * 1/2 16/36 5 5 * 5/18 * 1/2 25/36 6 6 * 6/18 * 1/2 36/36 The chance of breakdown within x weeks after a previous breakdown is x^2/36. To find the average value of x, we set x^2/36 = 1/2 to get x = 3 * sqrt(2) = 4.243.
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Unformatted text preview: 4.243 weeks 3. Revenue lost per day the copier is out of service Number of copies sold per day Price of each copy Revenue per day Low estimate 2000 0.10 200 High estimate 8000 0.10 800 Average 5000 0.10 500 4. Lost revenue due to copier breakdowns over 1 year (average) Weeks per year 52 Weeks between breakdown 4.243 Breakdowns per year 12.255 Days lost per breakdown 2.25 Revenue lost per day 500 Revenue lost per breakdow 1,125 Revenue lost per year 13,787...
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