Question

regression - is there any linear unbiased estimator of E(y|x) with a lower variance than the OLS solution?

score 231 · Answer 1 · 2020-09-30 19:28:16

231

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regression - is there any linear unbiased estimator of E(y|x) with a lower variance than the OLS solution?

Published on 30 Sep 2020 - 19:28

score 114 · Answer 2 · 2020-10-01 06:47:12

114

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Compare variances of two estimators of a linear regression

Published on 01 Oct 2020 - 6:47

score 55 · Answer 3 · 2020-10-01 15:31:00

55

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Loss Function for $l_0$ norm

Published on 01 Oct 2020 - 15:31

score 84 · Answer 4 · 2020-10-05 07:57:11

84

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Proof that R-squared can be negative

Published on 05 Oct 2020 - 7:57

score 30 · Answer 5 · 2020-10-06 01:11:00

30

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need some statistics questions answered

Published on 06 Oct 2020 - 1:11

score 35 · Answer 6 · 2020-10-06 13:43:05

35

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I might need some help on some statistics homework questions

Published on 06 Oct 2020 - 13:43

score 152 · Answer 7 · 2026-03-28 05:22:20

152

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prove that covariance matrix can be expressed as $XCX^\top$ with C is centering matrix

Published on 28 Mar 2026 - 5:22

score 81 · Answer 8 · 2020-10-10 15:22:21

81

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Multiple regression beta is just $X^{-1}y$?? why not?

Published on 10 Oct 2020 - 15:22

score 26 · Answer 9 · 2020-10-13 19:34:12

26

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How do we compute $(a+b)^2$ for vectors or matrices?

Published on 13 Oct 2020 - 19:34

score 168 · Answer 10 · 2020-10-13 20:36:33

168

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How do we compute partial derivative with respect to a vector?

Published on 13 Oct 2020 - 20:36

score 416 · Answer 11 · 2026-03-25 14:21:48

416

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Multivariate Quadratic Regression For 3+ input variables

Published on 25 Mar 2026 - 14:21

score 169 · Answer 12 · 2020-10-15 20:46:32

169

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How to check if the inverse exist by analyzing the matrix?

Published on 15 Oct 2020 - 20:46

score 495 · Answer 13 · 2020-10-17 19:07:32

495

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Prove that the k-fold cross validation error is an almost unbiased estimate of the risk

Published on 17 Oct 2020 - 19:07

score 44 · Answer 14 · 2026-02-23 12:00:21

44

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Testing p-value for a linear association using Anova result.

Published on 23 Feb 2026 - 12:00

score 53 · Answer 15 · 2020-10-26 16:43:56

53

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How to compute variance of error of a least squares model?

Published on 26 Oct 2020 - 16:43

List Question

regression - is there any linear unbiased estimator of E(y|x) with a lower variance than the OLS solution?

Compare variances of two estimators of a linear regression

Loss Function for $l_0$ norm

Proof that R-squared can be negative

need some statistics questions answered

I might need some help on some statistics homework questions

prove that covariance matrix can be expressed as $XCX^\top$ with C is centering matrix

Multiple regression beta is just $X^{-1}y$?? why not?

How do we compute $(a+b)^2$ for vectors or matrices?

How do we compute partial derivative with respect to a vector?

Multivariate Quadratic Regression For 3+ input variables

How to check if the inverse exist by analyzing the matrix?

Prove that the k-fold cross validation error is an almost unbiased estimate of the risk

Testing p-value for a linear association using Anova result.

How to compute variance of error of a least squares model?

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