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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,
6 o, _+ T" O, K; J& t& V 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.
c. e" n& R8 j- U5 j( V+ m Loads are processed by each operator for the following time:3 a- A% ?8 d) {; R
Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.# n9 Y3 H; z& A
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.( Z- a1 y5 Y2 f( J/ ?6 J# H
Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
* H0 `9 c; e2 R1 R7 YSend 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:, K O5 ?0 R+ _/ C0 c) M- ]2 x2 Y2 x( _
After running the model for 10,000 days, what was the average number of loads in each process?4 Y; R+ V( Z n; y- t" \
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不胜感激! |
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