It is not half of the r.v., you are still thinking of it as a conventional variable - actually it is a function. A third example may be "X = Tail count squared" - that is, we count the Tails and square it. The definitions of r.v. depends on the requirements of a particular experiment.
Why we take half of the random variable ? Can you explain more details with another example?
It is not half of the r.v., you are still thinking of it as a conventional variable - actually it is a function. A third example may be "X = Tail count squared" - that is, we count the Tails and square it. The definitions of r.v. depends on the requirements of a particular experiment.