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刚刚开始学auto mod,这道题目搞不明白，希望大家看看 题目是这样的，
" Q% a! t/ n! P0 L Create a new model containing three independent processes, each with one operator. In each process, loads first move into an infinite capacity waiting queue, then into a single-capacity processing queue.
1 _" y- }; _ b. f Loads are processed by each operator for the following time:8 A9 u) |1 n3 g4 [& t
Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.9 [. U, j7 F0 q
Worker_B does the job according to a triangular distribution with a min of 30 mins, most likely value of 60 mins, and a max of 90 mins.3 H+ F) W2 P( o. O
Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
; v( W r( ~, z* B, v KSend loads to each pocess at the same rate (an exponentially distributed inter-arrival time with a mean of 68 mins) to understand the difference in the processing times of the three workers.
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问题：$ o5 i& j4 n+ ]8 I
After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激！ |
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发表于 2009-10-3 15:08:34
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