Return-Path: william@bourbon.usc.edu Delivery-Date: Tue Sep 23 22:46:26 2008 X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on merlot.usc.edu X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=3.2.3 Received: from bourbon.usc.edu (bourbon.usc.edu [128.125.9.75]) by merlot.usc.edu (8.14.1/8.14.1) with ESMTP id m8O5kPSH019154 for ; Tue, 23 Sep 2008 22:46:25 -0700 Received: from bourbon.usc.edu (localhost.localdomain [127.0.0.1]) by bourbon.usc.edu (8.14.2/8.14.1) with ESMTP id m8O5nDsI017865 for ; Tue, 23 Sep 2008 22:49:13 -0700 Message-Id: <200809240549.m8O5nDsI017865@bourbon.usc.edu> To: cs551@merlot.usc.edu Subject: Re: Average Times Date: Tue, 23 Sep 2008 22:49:13 -0700 From: Bill Cheng Someone wrote: > I have two queries: > 1) We don't consider customers dropped when calculating the avg service > time right? Please see my message with timestamp "Sun 21 Sep 21:03". > 2) I am not sure of what average time spent in the system mean. Time spent in the system for a customer is the elapsed time between the time the customer arrives and the time the customer leaves the server. If you have N samples of "time spent in the system", the average time spent in the system is the sum of all N samples divided by N. -- Bill Cheng // bill.cheng@usc.edu