Calculating and interpreting residuals
Chloe surveyed students in her class about the numbers
of text messages they sent and received the previous
day. An approximate least-squares regression line was
used to predict the number of text messages received
from a given number of text messages sent.
Text messages received
10
20 30 40 50 60 70 80
Text messages sent
Interpret the residual for the student indicated in the
scatter plot above