Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Engineering Mathematics Probability and Statistics
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.
1
e−15
2
1 − e−15
3
1 − e−20
4
e−20