a6-hat-trick {ctfepi}sealed case file
Hat Trick
Case A6, The Cipher DrawerLinear Algebra and Numerical Methodsscene 3medium200 pts
Case
Marlow encrypted his private notes with matrices. Decoding them is how you earn his trust.
What this scene will ask
A regression design matrix.
Planned flag: the observation with the highest leverage; its leverage, 4 dp; its Cook's distance, 4 dp; trace of the hat matrix*.
Status
[#] Sealed. This scene opens when it is written and passes review. Nothing on CTFEpi expires, so there is no rush.