Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with mathematical-statistics
Search options not deleted
user 334100
Mathematical theory of statistics, concerned with formal definitions and general results.
2
votes
What's the intuition for ABA' in linear algebra?
For short
This is covariance matrix's property $var(AX)=Avar(X)A^T$.
Also in scalar variance, $var(aX) = a^2var(X)$ when $a$ is constant. (Maybe) we can interprete as squred of matrix as well.
In othe …
- 121