User user321627

18 votes

2 answers

15k views

In using the cbind() function in R for a logistic regression on a $2 \times 2$ table, what is the explicit functional form of the regression equation?

asked Feb 2, 2017 at 3:37

15 votes

4 answers

2k views

In comparison with a standard gaussian random variable, does a distribution with heavy tails have higher kurtosis?

asked Jul 29, 2020 at 2:07

10 votes

1 answer

6k views

What is the difference using a Fisher's Exact Test vs. a Logistic Regression for $2 \times 2$ tables?

asked Feb 2, 2017 at 18:43

10 votes

3 answers

474 views

What do statisticians mean when they say we do not really understand how the LASSO (regularization) works?

asked Mar 30, 2017 at 14:06

10 votes

1 answer

2k views

How to generate Bernoulli random variables with common correlation $\rho$?

asked Dec 14, 2017 at 3:34

9 votes

1 answer

2k views

When we run many chains at once in an MCMC model, how are they combined together for the posterior draws?

asked Feb 13, 2017 at 0:43

8 votes

1 answer

2k views

How to derive the asymptotic distribution of the test statistic of a large sample test for equality of two binomial populations?

asked Dec 7, 2016 at 8:34

8 votes

1 answer

1k views

Difference between the Fisherian and Neymanian methods for causal inference?

asked Jul 11, 2017 at 23:02

8 votes

3 answers

2k views

How are estimators like the Horvitz-Thompson Estimator derived?

asked Sep 20, 2017 at 4:18

8 votes

1 answer

348 views

If I have a vector of $N$ correlated probabilities. How can I turn them into binary $0,1$ without destroying the correlation?

asked Jan 26, 2018 at 21:28

7 votes

2 answers

538 views

In a Bayesian hierarchical model, if exchangeability doesn't hold, what exactly goes wrong?

asked Feb 20, 2018 at 4:28

7 votes

2 answers

1k views

For creating the joint posterior distribution for multiple variables, are the associated Bayesian priors usually assume independent of each other?

asked Mar 31, 2018 at 2:07

7 votes

1 answer

18k views

Is the LASSO really applicable for binary classification problems?

asked Apr 17, 2018 at 3:18

7 votes

1 answer

2k views

In causal inference in statistics, how do you interpret the consistency assumption in mathematical terms?

asked Sep 25, 2017 at 4:11

7 votes

1 answer

926 views

Why are the contours of a linear regression residual sum of squares an ellipse?

asked Apr 26, 2021 at 8:19

6 votes

2 answers

241 views

Is it true that currently we cannot compute p-values or confidence intervals for the coefficients from a Lasso regression problem? [duplicate]

asked Aug 15, 2022 at 5:14

6 votes

3 answers

325 views

Why is sufficient statistics/data reduction normally taught in Statistics?

asked Mar 26, 2019 at 19:26

6 votes

3 answers

3k views

Given an adjacency matrix, how can we fit a covariance matrix based on that for a graph without running into a NON-positive definite matrix?

asked Jul 29, 2017 at 8:08

6 votes

3 answers

647 views

Does Fisher's Exact test for a $2\times 2$ table use the Non-central Hypergeometric or the Hypergeometric distribution?

asked Feb 2, 2017 at 2:16

6 votes

1 answer

126 views

How to compute $\mathbb{E}\left[Y_1Y_2 \mid |U_1-U_2| <a\right]$ for $Y_i\sim N\left(\beta U_i, \sigma^2\right)$ and $U_i \sim Unif(0,1)$?

asked Jul 2, 2017 at 0:19

6 votes

1 answer

2k views

In multinomial logistic regression, why do the decision boundaries tend to be parallel to each other?

asked Oct 31, 2017 at 2:26

5 votes

1 answer

230 views

Suppose $X,Y,Z$ are random variables such that $Y,X$ are perfectly correlated. Does it hold that $P(Z|X,Y) = P(Z|Y)$?

asked Mar 4, 2018 at 18:46

5 votes

2 answers

341 views

What does it mean to say that the t-distribution provides an "adjustment" or "estimate" for a normal distribution?

asked Jun 16, 2017 at 5:59

5 votes

1 answer

2k views

Why do independent priors for two random variables not result in an independent joint posterior distribution?

asked Jun 25, 2017 at 23:48

5 votes

2 answers

3k views

How does Inverse weighted propensity score regression differ from propensity score matching?

asked Jul 23, 2017 at 11:00

5 votes

1 answer

1k views

Is there a corresponding bias-variance decomposition of MSE for vectors?

asked Nov 5, 2016 at 1:06

5 votes

1 answer

3k views

What is the deeper intuition behind the symmetric proposal distribution in the Metropolis-Hastings Algorithm?

asked Feb 16, 2017 at 5:57

5 votes

2 answers

2k views

Why is a Normal Mixture Model not identifiable and why does it matter?

asked Mar 7, 2017 at 2:41

5 votes

1 answer

104 views

What is the correct interpretation of the $\beta_1$ coefficient in a linear regression model?

asked Jul 30, 2022 at 22:12

4 votes

1 answer

1k views

What are some examples when the Average Treatment Effect on the Treated/Control (ATT,ATC) is more sought after than the ATE?

asked Apr 29, 2021 at 2:37

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232 Questions

In using the cbind() function in R for a logistic regression on a $2 \times 2$ table, what is the explicit functional form of the regression equation?

In comparison with a standard gaussian random variable, does a distribution with heavy tails have higher kurtosis?

What is the difference using a Fisher's Exact Test vs. a Logistic Regression for $2 \times 2$ tables?

What do statisticians mean when they say we do not really understand how the LASSO (regularization) works?

How to generate Bernoulli random variables with common correlation $\rho$?

When we run many chains at once in an MCMC model, how are they combined together for the posterior draws?

How to derive the asymptotic distribution of the test statistic of a large sample test for equality of two binomial populations?

Difference between the Fisherian and Neymanian methods for causal inference?

How are estimators like the Horvitz-Thompson Estimator derived?

If I have a vector of $N$ correlated probabilities. How can I turn them into binary $0,1$ without destroying the correlation?

In a Bayesian hierarchical model, if exchangeability doesn't hold, what exactly goes wrong?

For creating the joint posterior distribution for multiple variables, are the associated Bayesian priors usually assume independent of each other?

Is the LASSO really applicable for binary classification problems?

In causal inference in statistics, how do you interpret the consistency assumption in mathematical terms?

Why are the contours of a linear regression residual sum of squares an ellipse?

Is it true that currently we cannot compute p-values or confidence intervals for the coefficients from a Lasso regression problem? [duplicate]

Why is sufficient statistics/data reduction normally taught in Statistics?

Given an adjacency matrix, how can we fit a covariance matrix based on that for a graph without running into a NON-positive definite matrix?

Does Fisher's Exact test for a $2\times 2$ table use the Non-central Hypergeometric or the Hypergeometric distribution?

How to compute $\mathbb{E}\left[Y_1Y_2 \mid |U_1-U_2| <a\right]$ for $Y_i\sim N\left(\beta U_i, \sigma^2\right)$ and $U_i \sim Unif(0,1)$?

In multinomial logistic regression, why do the decision boundaries tend to be parallel to each other?

Suppose $X,Y,Z$ are random variables such that $Y,X$ are perfectly correlated. Does it hold that $P(Z|X,Y) = P(Z|Y)$?

What does it mean to say that the t-distribution provides an "adjustment" or "estimate" for a normal distribution?

Why do independent priors for two random variables not result in an independent joint posterior distribution?

How does Inverse weighted propensity score regression differ from propensity score matching?

Is there a corresponding bias-variance decomposition of MSE for vectors?

What is the deeper intuition behind the symmetric proposal distribution in the Metropolis-Hastings Algorithm?

Why is a Normal Mixture Model not identifiable and why does it matter?

What is the correct interpretation of the $\beta_1$ coefficient in a linear regression model?

What are some examples when the Average Treatment Effect on the Treated/Control (ATT,ATC) is more sought after than the ATE?