M-STA-010Foundation & HigherReview: Pending

Calculate combined means and solve missing-value problems

Statistics · Averages (T-STA-003)

v1 mapping, pending teacher review. Only AQA and Edexcel are mapped so far. The first 3 pilot worksheets and their worked answers are available; remaining worksheets are coming soon. All videos are still coming soon.

Retrieval: Mean times number of values
Fluency: Recover totals and combine samples
Reasoning: Justify the average and describe the effect of an outlier.
Application: Compare a combined mean with two subgroup means
Common misconception: Grouped-data calculations may be estimates.

Video brief

Model how to calculate combined means and solve missing-value problems. Explain each step; pause for a matching shadow question.

Planned video: V-STA-010 · Video coming soon

Worksheets

Worksheets coming soon

Note: Scope and tier apply to this skill; tag each generated variant separately.