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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,
! Y0 U1 k3 @9 K% T, ? 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.
: ?5 V3 ~( {& j; v# W* V! W Loads are processed by each operator for the following time:
2 \2 M4 d0 ~. E: l ~- M- @ Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
% k+ E2 {- F! @+ |9 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.
; N& P5 h3 s( K) F+ _ Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. `/ E* h- T/ f" f, m+ wSend 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.! Y% d: v y( t
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问题:
& `1 z6 _7 o8 n2 a3 L' U4 v: SAfter running the model for 10,000 days, what was the average number of loads in each process?
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1 y7 Y }1 }# I1 t- F不胜感激! |
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