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:

Condition False

A boolean state indicating that a particular condition or expression evaluates to false.

Posttest Loop

A programming loop that evaluates its condition after the loop's body has been executed, ensuring the loop runs at least once.

Entranced-Controlled Loop

Likely an incorrect term possibly referring to "entry-controlled loop," which determines whether to execute its loop body based on a condition checked at the beginning of each iteration. NO.

Switch Statement

A control statement that allows a variable to be tested for equality against a list of values, each with its own case block of code.