Linear Model Rap

Lyric by Mary McLellan
may sing to the tune of "Ice Ice Baby" (Vanilla Ice)

Yikes! Is it Linear, Listen…
Have you got a correlation coefficient
r is the strength of linearity
R2   is % of variability
Can we tell from r- NO! You don’t know
Residual plot- you must check
Look at residuals and see if there’s a pattern
“Statistical Evidence” only with a p-value

Linear Model…. Linear Model….