28. Which of the following is NOT given as an example of a qualitative variable? A) Gender B) Height C) College major D) Type of personality

16. Even at low levels, ______ A) the nervous system has produced detrimental effects by lead. B) lead’s detrimental effects are producing the nervous system. C) lead produces detrimental effects on the nervous system. D) the detrimental effects produced by lead on the nervous system.