One Classic Use of the Normal Distribution Is Inspired by a Letter

question 56

Multiple Choice

One classic use of the normal distribution is inspired by a letter to Dear Abbey in which a wife
Claimed to have given birth 308 days after a brief visit from her husband, who was serving in the
Navy. The lengths of pregnancies are normally distributed with a mean of 268 days and a standard
Deviation of 15 days. Given this information.
(i. the probability of a pregnancy lasting 308 days or longer is 0.0038.
(ii. The result suggests that the husband is the father of the child.

• A) (i) and (ii) are correct statements.
• B) (i) is a correct statement but not (ii).
• C) (ii) is a correct statement but not (i).
• D) (i) and (ii) are false statements.

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Definitions:

Chronic Disease

A long-lasting condition that can be controlled but not cured, often with persistent effects on a person's health and well-being.

Aminotransferase

An enzyme that catalyzes the transfer of amino groups from an amino acid to a keto acid, essential in amino acid metabolism.

Skeletal Muscle Damage

Injury or harm to muscle fibers of the body used for movement, often resulting from excessive physical activity or trauma.

Muscular Dystrophy

A group of genetic diseases that cause progressive weakness and loss of muscle mass.