Question

Do two pairs of distinct natural numbers exist such that AGM(A,B) equal to AGM(C,D)?

score 46 · Answer 1 · 2026-03-26 01:25:10

46

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Do two pairs of distinct natural numbers exist such that AGM(A,B) equal to AGM(C,D)?

Published on 26 Mar 2026 - 1:25

score 37 · Answer 2 · 2026-02-23 11:39:15

37

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How should I calculate mean CI - from raw data or mean values?

Published on 23 Feb 2026 - 11:39

score 90 · Answer 3 · 2026-03-25 03:02:49

90

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score 71 · Answer 4 · 2026-03-25 18:49:34

71

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My goal is to calculate $\operatorname{Cov}(X,Y)$, but I'm struggling to calculate $E[XY]$

Published on 25 Mar 2026 - 18:49

score 161 · Answer 5 · 2019-01-25 07:26:33

161

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score 309 · Answer 6 · 2019-01-26 02:24:48

309

Views

Consider a random variable $X$ with the log-normal pdf $f(x) ={1\over \sqrt{2π}}x^{−1}exp^{{−0.5 (logx)^2}}$, $x>0$.

Published on 26 Jan 2019 - 2:24

score 47 · Answer 7 · 2019-01-27 14:06:57

47

Views

Mean of the partial sum of the normalized Gaussian random vector

Published on 27 Jan 2019 - 14:06

score 26 · Answer 8 · 2019-01-27 22:36:53

26

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score 146 · Answer 10 · 2026-03-25 18:04:38

146

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Can a summation be transferred into the denominator?

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score 681 · Answer 11 · 2026-03-25 14:36:49

681

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What is the maximum value of $\frac{x^{100}}{1+x+x^2+\ldots+x^{200}}$?

Published on 25 Mar 2026 - 14:36

score 64 · Answer 12 · 2026-03-25 11:09:45

64

Views

MSE Minimized by Mean

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score 1.4k · Answer 13 · 2019-02-13 16:33:17

1.4k

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score 594 · Answer 14 · 2019-02-16 03:18:39

594

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score 37 · Answer 15 · 2019-02-17 01:26:12

37

Views

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Published on 17 Feb 2019 - 1:26

List Question

Do two pairs of distinct natural numbers exist such that AGM(A,B) equal to AGM(C,D)?

How should I calculate mean CI - from raw data or mean values?

Computing the overall mean value in a game of chance with related means

My goal is to calculate $\operatorname{Cov}(X,Y)$, but I'm struggling to calculate $E[XY]$

Is there a formula for the silver spiral?

Consider a random variable $X$ with the log-normal pdf $f(x) ={1\over \sqrt{2π}}x^{−1}exp^{{−0.5 (logx)^2}}$, $x>0$.

Mean of the partial sum of the normalized Gaussian random vector

How to show that the number of jobs is distributed equally

Is a definite integral just a summation?

Can a summation be transferred into the denominator?

What is the maximum value of $\frac{x^{100}}{1+x+x^2+\ldots+x^{200}}$?

MSE Minimized by Mean

Expected value of number of throws of a dice to get element $1$ four times

Variance and mean of balls in bins limited capacity

Question about an inequality about geometric mean

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