# Thread: Mean of Current I with Random variable of R

1. ## Mean of Current I with Random variable of R

Hi all,
I am new to probability and not so good at it, So please bear with me

If a voltage e is connected across a resistor whose resistance is random variable R, and uniformly distributed between a and b, I needed to find the Mean of current "I" given by "I = e/R"

My question is can an estimate i.e E{I} be given?? as what my notion was that the Estimate can only be given on Random variables and here, I is not given as a random variable.
Secondly, Since is PDF of R is not given how should I consider f(x) of R as?

Yashodhar Rao

3. ## The Following 2 Users Say Thank You to asterisk For This Useful Post:

TheEcologist (10-06-2013), Yashodhar.rao (10-06-2013)

4. ## Re: Mean of Current I with Random variable of R

Ah!.. thank you asterisk.. I had completely forgotten that "Uniform distribution" was given there!

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