How often each topic actually gets tested

Individually confirmed tested in 8 of the 20 series reviewed for this course's own research (June 2019–January 2026 archive) — the highest confirmed count of any WMA12 topic. (The paper-wide frequency table this entry is built from originally logged 6; a later, independent per-topic audit found two more real anchors and this entry uses that updated count.) Don't assume it opens the paper, though — only 2 of those 8 instances actually sit at Q1, with the rest ranging as late as the paper's final question.

Confirmed tested in 6 of the 20 series reviewed. Only 2 of those 6 carry a fully verified question number and mark total in this course's research so far — the other four are confirmed real by direct examiner-report quotation, without a surviving mark-scheme breakdown.

Confirmed tested, by named series and question, in 5 of the 20 series reviewed (June 2019 through June 2025). An earlier pass had logged this as "at least 4"; a further audit named a fifth real anchor.

Confirmed as a dedicated question in 5 of the 20 series reviewed — plus a sixth series (January 2025) where a logarithm appeared embedded inside a trapezium-rule question rather than as a standalone item, not counted in the headline 5.

Confirmed tested in 4 of the 20 series reviewed, split between a flat, cheap 3-mark bookwork proof and a longer real-world context that transitions into geometric series — the latter historically one of the paper's hardest discriminating questions.

Confirmed tested in 4 of the 20 series reviewed, three of the four from October sittings. No January series has a confirmed named citation for this topic in this course's research to date — a gap in what's been individually verified, not evidence January papers skip it.

Confirmed tested in 4 of the 20 series reviewed, split between a compact ~7-mark find-and-classify question and a longer 10–11 mark practical optimisation question. Both confirmed optimisation instances are from 2025 series, with none found in the other 16 series checked so far.

Confirmed tested, with a fully named series and question, in 4 of the 20 series reviewed. (This course's own facts bank separately asserts "at least 5 series" for this topic, but that broader figure isn't tied to a specific named citation anywhere in this course's research, so this entry uses the stricter, individually-verified count of 4.)

Confirmed tested in 3 of the 20 series reviewed. Every one of those 3 pairs a curve with a straight line — no confirmed real WMA12 anchor for a pure two-curve area exists in this course's research yet, even though the spec names that case explicitly.

Confirmed as its own dedicated question in 3 of the 20 series reviewed (October 2020, January 2022, January 2024). Two further series cite geometric-series content more loosely — a named formula-confusion error, not a dedicated question — which would raise the count to 5 if counted; this entry uses the stricter, dedicated-question figure of 3.

The thinnest-confirmed WMA12 topic in this course's research: individually confirmed in 2 of the 20 series reviewed (January 2024 and June 2025), with June 2025 contributing a second paper via its regional variant — 2 series / 3 papers total, and no fourth real citation found in any source checked.