In a survey of recent graduates, your college reports that the mean salaries of the former students are positively skewed. What are the consequences of choosing the mean rather than the median or the mode in this case?
a. The mean is likely to provide a number that is lower than the largest cluster of scores.
b. The mean is likely to provide a reliable estimate of where the scores cluster.
c. The mean is likely to provide a number that is higher than the largest cluster of scores.
d. The mean provides the 50th percentile of the distribution, making it the best choice to depict this cluster of scores.
Rationale: The mean is the arithmetic average of a set of numbers.
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Compared to the original approach to psychodynamic therapy, the most recent approach to psychodynamic therapy
a. lasts the same amount of time but focuses more on current relationships. b. lasts the same amount of time but focuses on talking therapy. c. takes less time and focuses more on current relationships. d. takes less time but focuses more on early childhood experiences.
The part of the brain that might be compared to a thin bicycle helmet is the
a. hippocampus. b. cerebral cortex. c. cerebellum. d. corpus callosum.