Q57

MCQ2 marks, −0.5

In a multi-user operating system on an average, $20$ requests are made to use a particular resource per hour. The arrival of requests follows a Poisson distribution. The probability that either one, three or five requests are made in $45$ minutes is given by :

(A)

$6.9 \times 10^6 \times e^{-20}$

(B)

$1.02 \times 10^6 \times e^{-20}$

(C)

$6.9 \times 10^3 \times e^{-20}$

(D)

$1.02 \times 10^3 \times e^{-20}$

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