[排隊理論]一條簡短題求expected cost
(1) 題目是這樣的:
You are given an M/M/1 queuing system with mean arrival rate λ
and mean service rate μ. An arriving customer receives "n" dollars if
"n" customers are already in the system. Determine the expected price in
dollars per customer.
(2) 我的想法是:
應該是求 1 ×P_1 + 2 ×P_2 + ... + n ×P_n
那就其本按定義就是 L 嘛,即平均系統內有的客人數目.
誠心問問各位版友這樣理解有沒有錯誤呢? 因為書本都沒有解答. 謝謝指教.
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