Find the mean and variance of the mean of a random sample of 9 from a distribution having pdf 6x(1-x) 0 < x < 1, zero elsewhere. I don't even know how to start this one.
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Originally Posted by wolverine21 Find the mean and variance of the mean of a random sample of 9 from a distribution having pdf 6x(1-x) 0 < x < 1, zero elsewhere. I don't even know how to start this one. Start with the basic definitions and formulae: . where . where and .
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