Thread: what is the meaning of

f means density function what are Y and y
?

Originally Posted by transgalactic

f means density function what are Y and y
?

Y is the random variable. And since f is a function, .....

what is y then?

Originally Posted by transgalactic

what is y then?

Well, if I have a function g(x), say, what is x ....? Perhaps you need to go back to revise your pre-calculus work on functions.

Originally Posted by transgalactic

f means density function what are Y and y
?

It is the density of the RV Y evaluated at y.

CB

Originally Posted by CaptainBlack

It is the density of the RV Y evaluated at y.

CB

i see your words are much closer to what i am looking for

can you say what is RV
why Y evaluated by y

can you give a simple example so it will be clear

Originally Posted by transgalactic

i see your words are much closer to what i am looking for

can you say what is RV
why Y evaluated by y

can you give a simple example so it will be clear

RV means a random vairable

Y being evaluated at y means you are finding the pdf(probability density function) of the random variable!

life?
well that's 42.