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I think it is a simple statistics problem: (sum x)^2/T^2 = sum(x^2)/T how can i prove this ?

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  • I think it is a simple statistics problem: (sum x)^2/T^2 = sum(x^2)/T how can i prove this ?


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I think it is a simple statistics problem: (sum x)^2/T^2 = sum ... (sum x)^2/T^2 = sum(x^2)/T how can i prove ... (x) but I am not sure ... (X). I can ...
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Positive: 66 %
I think it is a simple statistics problem: (sum x)^2/T ... (sum x)^2/T^2 = sum(x^2)/T how can i prove ... Suppose you have x_1 x_2 x_3 ... method I can ...
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Positive: 63 %

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$$\int_0^{2\sqrt3} \frac{dx}{\sqrt{4+x^2}}$$ I solved a) but I can't ... simple but I can't find the ... x)=\sum_{n=0}^\infty \frac1{(2n)!}x^{2n}$$ prove ...
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Positive: 66 %
Say we have a function g(x), such that g(x) = ∫f(x)dx. Then say there is another function h(x) such that d/dx [g(x)] = h(x). Suppose after you...
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Positive: 61 %
... $ then by linearity of the expected value we get $$f(t) =E[Y^2]t^2 - 2 E[XY]t + E[X^2] ... end{align*} How can we find $E(X_{(2)}-X_{(1 ... How can I ...
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Positive: 47 %
This problem can be solved by working ... there can't be negative cost for ... compute the descriptive statistics: x 1 = 1, x 2 = 2, x 3 = 3, and x 4 = 6 ...
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Positive: 24 %

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