A test finds the following relationships between 8th grade fianl scores
and SAT scores.
Ave. 8th grade fianls= 90 SD= 3.5
Ave. SAT Scores = 1200 SD= 30 r= 0.5
Find the R.M.S. error of the regression line.

Carlos Rodriguez <carlos@math.albany.edu>
This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
Last modified: Wed May 13 12:29:11 EDT 1998