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Regarding continuous random variable

by semc
Tags: continuous, random, variable
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semc
#1
Sep19-06, 09:21 AM
P: 331
Here's the qn random variable X follows uniform distribution [-a,a] and random variable Y is defined as Y=e^x find E(Y)

i figure that E(Y)=E(e^x) but somehow cant carry on from there can anyone help?
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radou
#2
Sep19-06, 03:41 PM
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P: 3,220
The expectation of a continuous random variable Y is defined by [tex]\int_{-\infty}^{+\infty}xf(x)dx[/tex], where f(x) is the probability density function of the random variable Y. Follow the definition.


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