When random samples are drawn so that the selection of a case for one sample has no effect on the selection of cases for another sample, the samples are
a. dependent
b. independent
c. simple
d. systematic
b
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Which participants in a crowd are most important for setting the crowd on a particular course of action?
A) curious spectators B) the ego-involved C) insecure participants D) exploiters
The number of deaths per year per thousand people is
A) the life expectancy ratio B) the death dearth C) The mortality rate D) The morbidity index
A review of previous research on sibling contact reveals
a. siblings generally maintain contact with each other. b. that contact decreases in old age. c. the majority of elder siblings view their relationships with their siblings negatively. d. the loss of a sibling through death is less consequential for an elderly person than had it occurred earlier in life.
While Whites have higher rates of ______, Black and Hispanic Americans have higher rates of ______.
A. drug convictions; drug dependence B. drug arrests; drug use C. drug dependence; drug rehabilitation D. drug use; drug dependence