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Checking the relation between two questions

score 71 · Answer 1 · 2026-04-02 03:13:41

71

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Checking the relation between two questions

Published on 02 Apr 2026 - 3:13

score 91 · Answer 2 · 2021-10-22 18:44:36

91

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Explanation of the proof about correlation

Published on 22 Oct 2021 - 18:44

score 51 · Answer 3 · 2021-10-23 07:22:15

51

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How to verify if $\operatorname{corr}(X,Y)=\operatorname{corr}(log(X),log(Y))$?

Published on 23 Oct 2021 - 7:22

score 88 · Answer 4 · 2021-10-24 18:42:04

88

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Why are these two random variables correlated?

Published on 24 Oct 2021 - 18:42

score 112 · Answer 5 · 2021-10-24 23:59:59

Proof that given 2 variables X and Y with correlation $\rho_{X,Y}$ and given $U=a+bX$ and $V=c+dY$ then $\rho_{X,Y} = \rho_{U,V} $ if $bd > 0$

score 29 · Answer 6 · 2021-10-29 02:25:50

29

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$Y=AX + BX^3$. Compute Var(Y|X=x) $X$ has distribution $N(1,1)$ and $A$ & $B$ both have distribution $U(-1,1)$.

Published on 29 Oct 2021 - 2:25

score 79 · Answer 7 · 2021-11-12 21:01:52

79

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what is the correlation coefficient between x, y of the following function $f(x,y)=c$ , $y=1,2,..,x$; $x=1,2,..,n$

Published on 12 Nov 2021 - 21:01

score 65 · Answer 8 · 2026-03-28 09:45:36

65

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Verify that $I$ and $X$ are negatively correlated.

Published on 28 Mar 2026 - 9:45

score 31 · Answer 9 · 2021-11-19 01:58:28

31

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How can we derivate with a constant in trying to prove that correlation coefficient is between $-1$ and $1$?

Published on 19 Nov 2021 - 1:58

score 722 · Answer 10 · 2026-03-27 15:17:57

722

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Auto-Correlation of a discrete Markov chain

Published on 27 Mar 2026 - 15:17

score 402 · Answer 11 · 2026-02-23 10:52:59

402

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Covariance matrix for multivariate normal random variable

Published on 23 Feb 2026 - 10:52

score 43 · Answer 12 · 2021-11-25 20:51:58

43

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Calculation of the correlation coefficient of these quantities $S = 3X + 3Y + 2Z + U + V + W$ and $T = 9X + 3Y + 2Z + 2U + V + W$

Published on 25 Nov 2021 - 20:51

score 69 · Answer 13 · 2021-11-29 01:30:08

69

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Is it possible for a set of random variables to each be highly correlated with another variable, but not highly correlated with each other?

Published on 29 Nov 2021 - 1:30

score 82 · Answer 14 · 2021-12-07 21:57:40

82

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Calculation of correlation with knowledge of expected values and variances

Published on 07 Dec 2021 - 21:57

score 58 · Answer 15 · 2021-12-10 14:52:43

58

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Correlation between three random variables

Published on 10 Dec 2021 - 14:52

List Question

Checking the relation between two questions

Explanation of the proof about correlation

How to verify if $\operatorname{corr}(X,Y)=\operatorname{corr}(log(X),log(Y))$?

Why are these two random variables correlated?

Proof that given 2 variables X and Y with correlation $\rho_{X,Y}$ and given $U=a+bX$ and $V=c+dY$ then $\rho_{X,Y} = \rho_{U,V} $ if $bd > 0$

$Y=AX + BX^3$. Compute Var(Y|X=x) $X$ has distribution $N(1,1)$ and $A$ & $B$ both have distribution $U(-1,1)$.

what is the correlation coefficient between x, y of the following function $f(x,y)=c$ , $y=1,2,..,x$; $x=1,2,..,n$

Verify that $I$ and $X$ are negatively correlated.

How can we derivate with a constant in trying to prove that correlation coefficient is between $-1$ and $1$?

Auto-Correlation of a discrete Markov chain

Covariance matrix for multivariate normal random variable

Calculation of the correlation coefficient of these quantities $S = 3X + 3Y + 2Z + U + V + W$ and $T = 9X + 3Y + 2Z + 2U + V + W$

Is it possible for a set of random variables to each be highly correlated with another variable, but not highly correlated with each other?

Calculation of correlation with knowledge of expected values and variances

Correlation between three random variables

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