If three samples have means of 10, 20, and 15, respectively, what is their grand mean?
A) 5
B) 10
C) 15
D) 20
C
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Bobby wants to ensure that his sample looks like the population that he is studying. Bobby should use:
a. Oversampling b. Triangulation c. A Random Sample d. A Case Study
In the United States, a recent trend involving parenting is that
a. women are having more children. b. women are marrying earlier in life. c. more adults are delaying having children or choosing to remain childless. d. most men are now marrying before age twenty.
Potential new members of a social movement organization are MOST likely to be recruited when:
a. they share the concerns and grievances of the group. b. they are acting in defiance of their parents, spouse, or other family members. c. they have friends who are already members of the organization. d. they are deeply committed to the ideology of the group.
The Malaysian Family Life Survey found that:
A. older adults who exercised had low levels of depression. B. older adults who had daily contact with their children were protected from illness. C. older adults who exercised had high life expectancy. D. older adults who had daily contact with their children had less of a weight problem.