The population variance is
a. an estimate of the sample variance.
b. usually an unknown that we try to estimate.
c. calculated exactly like the sample variance.
d. a biased estimate.
B
Psychology
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Barbara is in the third grade. She spends many hours rehearsing her math skills, reading books, and collecting bugs. Even though these activities may seem boring, they are all part of Barbara's developing a healthy sense of
industry. self-control. autonomy. egocentrism.
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Learning that occurs when a neutral stimulus elicits a response that was originally caused by another stimulus is called ___________________
A) cognitive learning B) classical conditioning C) operant conditioning D) observational learning
Psychology