Which of the following correlational relationships arenegative?
*amount of time spent in REM per cycle vs. amount of time spent instage 4 per cycle
*total time spent in REM per average night vs. age (young toold)
*daily stress vs. total time spent that night in REM
*amount of time spent in REM per cycle vs. amount of time spent instage 4 per cycle AND total time spent in REM per average night vs.age (young to old)
*total time spent in REM per average night vs. age (young to old)AND daily stress vs. total time spent that night in REM
*amount of time spent in REM per cycle vs. amount of time spent instage 4 per cycle AND daily stress vs. total time spent that nightin REM
*All choices are correct
*None are correct