UGC-NET | UGC NET CS 2018 July – II | Question 53

In a multi-user operating system, 30 requests are made to use a particular resource per hour, on an average. The probability that no requests are made in 40 minutes, when arrival pattern is a poisson distribution, is _________.
(A) e^-15
(B) 1 – e^-15
(C) 1 – e^-20
(D) e^-20


Answer: (D)

Explanation:

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