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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,
+ G: x! X( `! A( r$ W8 r) q8 R 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.
F6 Y6 r. W7 h$ g& E9 ~+ C Loads are processed by each operator for the following time:
8 M' p# f/ X/ |/ D% J$ l& q Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.5 X- t% V1 F+ [% W4 w5 H. P3 @3 i
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.8 }. j- p/ W# d. }
Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 H8 \) i2 @* Q
Send 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.8 W: Z1 Z# f. a
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问题:" b& `8 M! g/ ], d( S5 f
After running the model for 10,000 days, what was the average number of loads in each process?
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; a! @ B8 W7 H H) v" F7 N不胜感激! |
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