$\displaystyle f_Y(y)$ f means density function what are Y and y ?
Last edited by transgalactic; Feb 2nd 2010 at 01:05 AM.
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Originally Posted by transgalactic $\displaystyle f_Y(y)$ 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 $\displaystyle f_Y(y)$ 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.
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