Find the Mean of the Binomial Random Variable

question 148

Multiple Choice

Find the mean of the binomial random variable. Round to two decimal places when necessary.
-A company manufactures batteries in batches of 20 and there is a 3% rate of defects. Find the mean for the random variable X, the number of defects per batch.

• A)0.6
• B)0.58
• C)0.62
• D)19.4

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Definitions:

Visual Cortex

The region of the brain that processes visual information.

Locked-In Syndrome

Condition in which a patient is aware and awake but cannot move or communicate verbally because of complete paralysis of nearly all voluntary muscles except the eyes.

Brainstem

The central trunk of the brain, continuing downwards to form the spinal cord, which controls fundamental life functions such as breathing and heart rate.

Prefrontal Cortex

The front part of the frontal lobe of the brain, involved in decision making, problem solving, control of purposeful behaviors, consciousness, and emotions.