if Y discrete what is PY0SolutionIf Y is a discrete random v

if Y discrete what is P(Y=0)

If Y is a discrete random variable say if you take an experiment of tossing a coin two times

sample space for the experiment is {HH,TT,HT,TH}

define Y to be the no of heads then Y is discrete random variable and takes valur 0, 1, 2

So probability that Y takes a value 0 means the number of heads is 0.

ie that happens in only one samole point TT

so probability is 1/4 i.e one out of four cases