The mean
a. is the most common measure of central tendency, but the median is more representative
when there are extreme values.
b. and the median of two sets of numbers are always different.
c. is easier to calculate than the median, but the median is more useful because it has special
mathematical properties.
d. and the median are most accurate when the sample is small.
e. is always greater than the median.
a. is the most common measure of central tendency, but the median is more
representative when there are extreme values.
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The mean of a Z score is always
a. 50 b. 0 c. equal to the mean of the raw score squared. d. 1
An individual who experiences serious physical problems that seem to have no identifiable physical cause would be classified as having:
a. hypochondriasis b. somatic symptom disorder c. obsessive-compulsive disorder d. a conversion disorder
The connections between drugs of abuse and cues surrounding drug use involve activity in the ______.
A. habenula B. thalamus C. hypothalamus D. hippocampus
How many pairs of chromosomes do humans have?
a. 23 b. 46 c. 69 d. 92