Estimate the Indicated Probability by Using the Normal Distribution as an Approximation

question 19

Multiple Choice

Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution.
-Estimate the probability of getting exactly 43 boys in 90 births.

• A) 0.1628
• B) 0.0764
• C) 0.0159
• D) 0.0729

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Definitions:

Amphetamine

A potent central nervous system stimulant that is used in the treatment of attention deficit hyperactivity disorder (ADHD), narcolepsy, and for weight loss, but can also be abused as a recreational drug.

Tranquilizers

Medications used to reduce tension or anxiety, often by depressing the central nervous system.

Placebos

Inactive substances or treatments used as a control in experiments, often to test the effectiveness of medical drugs.

GABA

Gamma-aminobutyric acid, an inhibitory neurotransmitter in the brain that helps reduce neuronal excitability throughout the nervous system.