Refer to the Following Breakdown of Responses to a Survey

question 98

Multiple Choice

Refer to the following breakdown of responses to a survey of room service in a hotel. What is the class interval for the frequency table above?

• A) 10
• B) 20
• C) 40
• D) None of the above

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Definitions:

Existing

The state or fact of being present or having an actual being; to have life or reality.

Many Independent Variables

Refers to experimental designs that include multiple factors being manipulated to observe their effect on a dependent variable.

Equal Numbers

A condition or state where two or more quantities or entities are of the same value or amount.

Interrupted Time Series Design

A quasi-experimental design where observations are made over time both before and after an intervention to detect whether the intervention has an effect distinct from underlying trends.