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:

Aggression

Behavior intended to harm or intimidate others, which can be physical or verbal, and is often a response to frustration or perceived threats.

Ethnocentrism

The belief in the inherent superiority of one's own ethnic group or culture, often accompanied by a feeling of contempt for other cultures.

Prejudice

An unfounded or biased preconception or attitude towards individuals or groups based on characteristics like race, gender, or social status.

Discrimination

refers to unjust or prejudicial treatment of different categories of people, especially on the grounds of race, age, or sex.