IB skill practice

Interpret regression slope and intercept

Connect regression coefficients to contextual prediction and rate meaning.

Paper 1, Paper 2 5 marks Difficulty 5

Interpret regression slope and intercept - technology-output use

A transport timing survey regression model has slope \(1.6\). Interpret the predicted change in \(y\) over an increase of 22 units in \(x\) by calculating the change. Confirm the interpretation before entering the result. Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.