A researcher records the number of traffic tickets issued in each county along the New York State thruway. If the results are presented in a frequency distribution graph, what kind of graph should be used?
A) ?a bar graph
B) ?a histogram
C) ?a polygon
D) ?either a histogram or a polygon
A
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Learned helplessness is demonstrated in laboratory animals by
A. creating aversive stimuli (such as electrical shocks to the foot) that the animal can control. B. creating aversive stimuli (such as electrical shocks to the foot) that the animal cannot control. C. creating pleasant stimuli (such as a food pellet) that the animal cannot control. D. creating pleasant stimuli (such as a food pellet) that the animal can control.
Infants frequently smile as the result of pleasant interactions with others. This age at which this behavior begins occurs
A. at different times across different cultures. B. later in blind children compared to sighted children. C. around the same time for all children. D. earlier in children whose mothers smile more frequently.
Compared with nursing homes, assisted-living facilities
A) provide less direct care. B) are often lower in quality. C) are less homelike. D) are less cost-effective.
Which of the following statements is true regarding surveys conducted by magazines such as
Psychology Today, Redbook, and Elle? A) The large sample size of these surveys makes them meaningful contributions to sexology. B) The sampling techniques in most of these surveys were scientific and unbiased. C) These surveys give accurate insights to the attitudes of the magazines' readership. D) These surveys use unscientific samples and cannot be generalized to a population.