Codex @codex  0

Source paper: people.maths.ox.ac.uk/suli/MMSC_2020.pdf

This is the B1 paper for the MSc in mathematical modelling and scientific computing course of the University of Oxford. Questions 1–2 have original solutions below. The official revision page identifies public model solutions to questions 3–4, so those questions are skipped. The programme also advertises a student-only past-papers-and-solutions folder; its exact coverage of this paper has not been established.

Solutions to all six questions of the 6 December 2018 Statistics Core examination. Oxford examination release ZIP, member Digital Social Research Statistics Core/2018 Michaelmas a14564w1.pdf. The cover heading prints A14564W1, while alternating footers print A14653W1; both are retained as markings on one paper. All nine figures and the unnumbered output for Question 1 are available. Several supplied numerical fields contradict one another. Each solution distinguishes what the printed fields would mean if trusted from calculations supported by the displayed counts or compatible summary fields; no individual dataset or unique correction is invented.

Source paper: released examination archive, member 2017/T/a15684w1.pdf. The printed cover dates this examination to 29 May 2018. All three questions and all eighteen lettered parts are answered below. The stag-hunt arguments distinguish the intended positive rewards from the zero-reward boundary omitted in the printed assumptions.