A Random Variable X Is Distributed Binomially with N =

question 43

Multiple Choice

A random variable X is distributed binomially with n = 8 and π = 0.70. The standard deviation of the variable X is approximately:

• A)0.458
• B)2.828
• C)1.680
• D)1.296

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Definitions:

Probability

A measure of the likelihood of a particular event or outcome occurring, expressed on a scale from 0 (impossibility) to 1 (certainty).

Results

Outcomes or data obtained from experiments, studies, or any process designed to gather information.

Standard Deviation

A statistical measure that quantifies the variation or dispersion of a set of data points from their mean value.

Mean

The arithmetic average of a set of values, or distribution.