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Mathematics 8 Online
OpenStudy (danmac0710):

If I know the expected value of x^2, i.e. E(X^2), how can I get the expected value of just (X), E(X) please?

OpenStudy (danmac0710):

I should also mention that I have the variance and that I have just figured it out! Sorry for time wasting and thanks for looking!

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