Give three examples of discrete random variables that you ma

Give three examples of discrete random variables that you may encounter in Electrical Engineering

Solution

1. say there are n number of circuits and out of which some are defective.

then we may define a discrete random variable X such that it denotes the number of defective circuits in n circuits.

so X~Bin(n,p) where p is the probability of a circuit to be defective

2. let Y be the discrete random variable denoting the number of signal bits transmitted by a telecommunication device in a month. then Y may follow a Poisson distribution.

3.let Z be the discrete random variable denoting the number of bulbs of type A is selected out of a lot of bulbs of type A and type B mixed. then Z~hypergeometric distribution.