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Sparsity
  • Member for 3 years, 8 months
  • Last seen more than a month ago
9 votes
2 answers
427 views

Why do we write models in the form of E(Y)?

6 votes
1 answer
1k views

Finding the Q function for the EM algorithm

4 votes
1 answer
6k views

Finding the posterior mean

4 votes
1 answer
190 views

Differentiation step in OLS

4 votes
1 answer
465 views

Why do I get a non-zero intercept using the lasso even though I centered the response?

3 votes
0 answers
577 views

Why do we pick the unbiased estimator for $\sigma^2$?

3 votes
1 answer
552 views

When is the dispersion parameter estimated in a GLM?

2 votes
1 answer
95 views

Why is most of the regression theory based on the assumption of normality?

2 votes
1 answer
117 views

Proof of the confidence interval for a coefficient

2 votes
1 answer
39 views

Which parts of the t-statistic depend on the other variables?

2 votes
1 answer
93 views

Finding which distribution the posterior is

1 vote
1 answer
25 views

Slight difference in the pmf of the Poisson distribution [closed]

1 vote
1 answer
94 views

Subtracting a constant from the OLS summation

1 vote
1 answer
39 views

How to perform a fair simulation study?

0 votes
1 answer
74 views

What exactly is the KKT check and what is the point of it?

0 votes
0 answers
25 views

Finding a test which maximises the power