Engineering Board Exam Reviewer · Engineering Management · hard

In an M/M/1 queue with utilization 0.8, what is the probability that there are more than 2 customers in the system? (P(n > k) = k+1)

  1. 0.640
  2. 0.200
  3. 0.488
  4. 0.512

Answer

D. 0.512

Solution

P(n > 2) = 3 = 0.83 = 0.512.

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