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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,
4 ?! p$ M) P7 G7 c 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 r) x4 E+ ~* I Loads are processed by each operator for the following time:3 F3 M; [% o* @: D: m
Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! ^/ v5 g* [) F; j$ p
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.
. T! T+ t, a2 S; U/ ?5 d1 U- { Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
! ~! J& T9 s" t5 c2 C1 ASend 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.1 ^6 | |3 z/ S" H: T$ D) Z) h4 i
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问题:& W, v! N- S# N1 v
After running the model for 10,000 days, what was the average number of loads in each process?% m0 M$ `3 b: s) C8 q. g- F
; {' G. Y0 D# C' `9 S( d) i. o+ b不胜感激! |
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