regarding the four-hour exam, December 6

The four-hour written exam takes place on December 6 (the day after the Godt Hjort festivities, December 4-5); see separate information about where and time of day (I do think it's in Silurveien, from 15:00 to 19:00, but check other sources). 

This is a No Book exam -- however, bring (1) a calculator, in case you might beed to find the square-root of 49, and (2) *one single sheet of paper with the candidate¡¯s own personal notes*. 

There should be no need for "long list of formulas". If I compose an exercise requring a certain not-so-standard formula, I might simply give it, as part of the text. The exam is not a "memory test", but is aiming at testing your understanding and ability to use what you've learned in the course. 

https://www.mn.uio.no/math/english/research/groups/statistics-data-science/events/conferences/hjort70/index.html