A social scientist investigates how the number of text messages sent by pupils each…
MATHEMATICS · Multi-part · AP · AP Statistics · Exploring Two-Variable Data · Exploring Two-Variable Data
Problem
A social scientist investigates how the number of text messages sent by pupils each day ( y ) depends on the number of hours they spend on social media each day ( x ). He finds the regression line y=6.7+1.4x . Interpret what each of the following numbers mean in context.
(a) 6.7
(b) 1.4