Fix a missing scatter plot or regression r

Press these keys

Walkthrough

1. 1
   For a missing plot

   Set Plot1 On, select scatter, verify Xlist/Ylist and equal list lengths, then use ZoomStat.

2. 2
   For missing r

   Press MODE and set STAT DIAGNOSTICS: ON, then rerun the regression.

3. 3
   Check old equations

   Turn off Y= functions that obscure the data.

Worked example