PDF pp. 3–8: selected algebra, geometry, mensuration, statistics and probability topic statements. Standard/Basic examination designs remain distinct.
Inspected 2026-10-23Opening your next discovery…
Opening your next discovery…
Can one value change the mean while leaving the median unchanged?
Change one observation in an original dataset and compare centre, spread and group membership.
Write at least 8 characters. Each trial keeps its own inputs; later control changes do not rewrite earlier observations.
Set the controls above and run a trial. A diagram, exact quantities and an explanation will appear here.
Keep up to 8 trials for this investigation. Compare two recorded observations with exactly one changed control. Writing is saved as participation evidence.
No trials yet. Start with the setup above.
A controlled comparison needs two observations with exactly one changed input.
Use at least 40 characters, a result from each trial and one model limitation. Your writing is not automatically graded.
These practice markers recalculate when evidence changes. They are not an official grade or a claim of mastery.
This is an original working investigation. Its selected source context does not establish full chapter coverage, official endorsement or prescribed-practical status. Detailed objective mapping remains provisional. Qualified subject-educator review is pending.
PDF pp. 3–8: selected algebra, geometry, mensuration, statistics and probability topic statements. Standard/Basic examination designs remain distinct.
Inspected 2026-10-23