The US Census Bureau collected data on family composition and found that samples from different parts of the country gave very different results for the mean number of family members living in households. If all of the data were combined to one data set,

a. the standard deviation of number of family members would probably be very small.
b. the standard deviation of number of family members would probably be relatively high.
c. the interquartile range would be small.
d. the median would equal the mean.

B

Psychology

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In order to have an effect, drugs used to treat psychological disorders must be able to:

A) reduce neurotransmitter activity in the brain. B) increase neurotransmitter activity in the brain. C) cross from one side of a synapse to the other. D) cross the blood-brain barrier.

Psychology

Inheritance in which a combination of multiple gene pairs is responsible for the production of a particular trait is called polygenic inheritance

Indicate whether the statement is true or false

Psychology