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Suppose that the times between successive arrivals of customers at a single-server station are independent random variables having a common distribution F. Suppose that when a customer arrives, he or she either immediately enters service if the server is free or else joins the end of the waiting line if the server is busy with another customer. When the server completes work on a customer, that customer leaves the system and the next waiting customer, if there are any, enters service. Let Xn denote the number of customers in the system immediately before the nth arrival, and let Yn denote the number of customers that remain in the system when the nth customer departs. The successive service times of customers are independent random variables (which are also independent of the interarrival times) having a common distribution G.
(a) If F is the exponential distribution with rate λ, which, if any, of the processes {Xn}, {Yn} is a Markov chain?
(b) If G is the exponential distribution with rate μ, which, if any, of the processes {Xn}, {Yn} is a Markov chain?
(c) Give the transition probabilities of any Markov chains in parts (a) and (b).
Suppose that A makes a statement, and then D says that C says that B says that A was telling the truth. What is the probability that A was actually telling the truth?
at goldey-beacom college 56 of employees carry dependent family members on their health insurance plans. currently
Now consider the real numbers. In fact, lets narrow our focus way down to just the part of the real line between 0 and 1. Circle that part of the real line. How many real numbers are there in between 0 and 1? What can you conclude from all this?
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The universities having the largest number of months in which they ranked in the top 10 for the number of google searches over the past 114 months (as of June 2013)-Find the sample mean of the data. Find the sample variance of the data.
The marks on a statistics midterm test are normally distributed with a mean of 78 and a standard deviation of 6. What is the probability that a class of 50 has an average midterm mark that is more than 75?
Think of any other situation where choices involve multiple objectives. Create a fundamental-objectives hierarchy and a means-objectives network.
the lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. random
What statistic (mean, median or mode) would you use to describe each aspect of the "typical" home? For example, you might use the MEAN for price, the MEDIAN for square footage.
1. Can you think of some different alternatives that the ODA might consider for control ling the gypsy moths? 2. Describe a decision that you have had to make recently that was difficult. What were the major issues? What were your alternatives? Did..
suppose you estimate a model obtaining wage 0.620 0.506 times educ 2.27 times female were wage is measured in
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