【简答题】A sociological study of gang members in a large mid-western city found the mean age of the gang members in the study to be 14.5 years and the standard deviation to be 1.5 years. According to Chebyshev...
【单选题】A study reported in American Sociological Review (1994) was entitled “Race Differences in Sexual Activity Among Adolescent Women.” The independent variable was probably: