TABLE 1-2 a Wall Street Journal Poll Asked 2,150 Adults in the in the U.S

question 24

Multiple Choice

TABLE 1-2
A Wall Street Journal poll asked 2,150 adults in the U.S. a series of questions to find out their view on the U.S. economy.
-Referring to Table 1-2, the possible responses to the question "How many people in your household are unemployed currently?" are values from a

• A) discrete numerical random variable.
• B) continuous numerical random variable.
• C) categorical random variable.
• D) parameter.

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Definitions:

Gender

A social construct that refers to the roles, behaviors, activities, expectations, and norms considered appropriate for individuals based on their perceived sex.

Degrees of Freedom

The number of independent ways by which a dynamic system can move, without violating any constraint imposed on it, indicating the amount of independent information available to estimate another piece of information.

Main Effect

The direct impact of an independent variable on a dependent variable in a statistical model.

Confidence Interval

A range of values derived from sample data that is likely to contain the value of an unknown population parameter, with a specified level of confidence.