this is a uniform (0,2)

Hence the mean is 1

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- September 8th 2011, 06:25 AM #1

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## mean value from a CDF

Hi, I'm not sure if this post is in the right place, but it's a university level question anyhow...

Random variable X has a cumulative distribution function (CDF) given by:

What is its mean value?

I'd seriously appreciate some help on this one - I'm not statistically minded at all and I'm finding the whole pdf cdf thing really confusing.

Cheers and thanks in advance!

Rorosingsong

- September 8th 2011, 11:13 AM #2

- September 9th 2011, 04:22 AM #3

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## Re: mean value from a CDF

Hi matheagle!

Thanks for your prompt reply, but I'm new to stats and not sure of what you mean by a "a uniform (0,2)"...

Could someone explain the working to me? I know it involves integrating FX(x), but I don't understand why x smaller than or equal to 0 or x larger than or equal to 2 aren't involved...

Thanks,

rorosingsong

- September 9th 2011, 05:53 AM #4

- September 9th 2011, 08:04 AM #5
## Re: mean value from a CDF

Your book should have the uniform density in it.

It's the most basic continuous density.

Otherwise google it and

http://en.wikipedia.org/wiki/Uniform...on_(continuous)