Success: Calculate Pearson's r with approved technology and interpret its sign, size and linear scope.
- Notice · 3 min. Predict whether r is positive, negative or near zero from the plot before opening a spreadsheet.
- Model · 5 min. Enter x and y from Card B in two columns; demonstrate
=CORREL(B2:B7,C2:C7)when those are the actual ranges. Show the cell/range check and the result to four decimals. - Try · 6 min. Learners reproduce the calculation on school-approved technology, or inspect a supplied result if equipment is unavailable. Log which route was used.
- Compare · 5 min. Expected r ≈ +0.9189. It supports a strong positive linear association for these six pairs. It does not measure a causal effect.
- Transfer · 4 min. Ask what the result would mean if the columns were reversed. r would be unchanged, even though explanatory and response labels matter for the question.
- Exit · 2 min. Collect value, sign and contextual interpretation. If technology gives an error, inspect header rows and paired ranges before teaching meaning.