Which Statement Is True About Cross- Validation

question 63

Multiple Choice

Which statement is true about cross- validation.

• A) It examines whether the regression model continues to hold on comparable data not used in the estimation.
• B) A special form of validation is called double cross- validation where the sample is split into halves.
• C) It can be used for evaluating the model for chance variations in the data and other problems associated with regression.
• D) All of the above statements are true.

---

Definitions:

Households

Units consisting of one or more persons living in the same dwelling and sharing meals or living accommodation; it is the basic unit in a society for consumption and decision making.

Firms

Business organizations or entities engaged in commercial, industrial, or professional activities.

Government

The governing body of a nation, state, or community, responsible for making and enforcing laws, policies, and regulations.

Consumption

The use of goods and services by households, constituting one of the primary components of economic activity and indicators of economic health.