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

question 84

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:

Checkout Lane

A passage or counter in a store where customers pay for their purchases.

Institutional Markets

Markets consisting of organizations like hospitals, schools, and governments that procure goods and services to fulfill their responsibilities.

Standardized Solutions

Predetermined methods or products designed to be uniformly applied across a variety of situations or industries.

Marketers

Individuals or organizations that promote, sell, and distribute products or services to satisfy customer needs.