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Average from Total

Use the relationship sum = average × count to recover a total, a missing data value, or a combined/weighted average, including changes when data is added or removed.

grade 6 Data & probabilityRatios algebraicsubproblem

Builds on: Division as the Inverse of Multiplication Read and Scale a Data Graph

Progression (6)

g6 1. Average distance per hour from total time Ratios · core

g6 2. Average times count gives the total Data & probability · core

g6 3. Recompute mean after adding or removing data Data & probability · core

g6 4. Set up one-unknown equation from mean Data & probabilityExpressions · core

g6 5. Use a partial average to find an unknown value Data & probability · advanced

g6 6. Model sum as rectangle area for means Data & probability · advanced