Fix audited DSE answer data and Q4(b) asset
#3
by htlyu - opened
High-confidence repairs from exhaustive visual audit of 1,830 student-leaf units in 8-7-new-06exp. Four answer files, fully recomputed statistics, and one duplicated Physics question asset; historical experiment artifacts unchanged.
htlyu changed pull request status to open
bbkbz changed pull request status to merged