You are conducting research on police presence and neighborhood safety. If your hypothesis is that “the more police presence, the safer the neighborhood,” then what is your independent variable?
a. police presence
b. a safer neighborhood
c. number of neighborhood residents
d. methods of police training
Answer: A
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When making a frequency table for a nominal variable, the values listed on the left-hand side of the frequency table should be:
A) the percent correct B) the number of social interactions per week C) the categories of the variable D) the appropriate interval groupings
By 2040, the number of Americans aged 65 or older is expected to increase to almost
______ million. a) 3 b) 25 c) 40 d) 80 e) 92
Which of the following is a type of election impropriety?
a) abusing the frank b) political theft c) receiving contributions in return for favors d) government violence
Which of the following is the best example of determining gender?
A. A medical doctor announcing that a newborn is a boy or a girl after observing its genitalia. B. Parents taking their children to a popular Disney, Pixar, or DreamWorks movie. C. A preschool aid reminding a young child which restroom is most appropriate for them to use. D. A contemporary questionnaire item that specifies if a person is male, female, or other.