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user321627
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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?

15 votes
4 answers
2k views

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

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?

10 votes
3 answers
474 views

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

10 votes
1 answer
2k views

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

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?

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?

8 votes
1 answer
1k views

Difference between the Fisherian and Neymanian methods for causal inference?

8 votes
3 answers
2k views

How are estimators like the Horvitz-Thompson Estimator derived?

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?

7 votes
2 answers
538 views

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

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?

7 votes
1 answer
18k views

Is the LASSO really applicable for binary classification problems?

7 votes
1 answer
2k views

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

7 votes
1 answer
926 views

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

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]

6 votes
3 answers
325 views

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

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?

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?

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 $U_i \sim Unif(0,1)$?

6 votes
1 answer
2k views

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

5 votes
1 answer
230 views

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

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?

5 votes
1 answer
2k views

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

5 votes
2 answers
3k views

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

5 votes
1 answer
1k views

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

5 votes
1 answer
3k views

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

5 votes
2 answers
2k views

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

5 votes
1 answer
104 views

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

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?

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