The Variance of a Binomial Distribution for Which N =

question 134

Multiple Choice

The variance of a binomial distribution for which n = 100 and p = 0.20 is:

• A)100
• B)80
• C)20
• D)16

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Definitions:

Margin of Error

An expression of the amount of random sampling error in a survey's results, representing how much the survey results are expected to differ from the true population value.

Confidence Interval

An interval of values calculated from sample data that has a specified probability of including the accurate population parameter.

Confidence Level

A statistical measure that quantifies the uncertainty or certainty in a sampling method, often expressed as a percentage.

Mean Cholesterol Level

The average amount of cholesterol present in the blood, calculated by summing all cholesterol levels and dividing by the number of observations.