Find the Mean of the Binomial Random Variable

question 76

Multiple Choice

Find the mean of the binomial random variable. Round to two decimal places when necessary.
-The probability is 0.3 that a person shopping at a certain store will spend less than $20. For groups of size 16, find the mean number who spend less than $20.

• A)14
• B)11.2
• C)6
• D)4.8

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Definitions:

Secondary Reinforcer

A type of reinforcer which does not satisfy a basic biological need but has been learned to be valuable through association with primary reinforcers.

Conditioned Response

A learned response to a previously neutral stimulus that has become associated with a meaningful stimulus.

Avoidance Conditioning

A type of learning in which an individual learns a behavior to avoid an unpleasant stimulus.

Negative Reinforcement

A behavioral concept in which the removal of an unfavorable outcome or stimulus increases the likelihood of a response occurring again in the future.