The data below compares hours of sleep to grades in school.
Ave hours of sleep= 8 SD= 0.8
Ave grades= 2.7 SD= 0.4 r=0.48
A person who sleeps 7 hours will probably have a G.P.A. of _________ ?
Carlos Rodriguez <firstname.lastname@example.org>
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