If the Population Is Believed to Have a Skewed Distribution

question 53

Multiple Choice

If the population is believed to have a skewed distribution for one of more of its distinguishing factors,which of the following should be used?

• A)simple random
• B)systematic
• C)cluster
• D)stratified
• E)convenient skip

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Definitions:

Flossing Frequency

The recommended regularity of cleaning between teeth with dental floss to prevent gum disease and dental decay.

Gum Disease

A set of inflammatory conditions affecting the tissues surrounding the teeth, which can lead to redness, swelling, and in severe cases, tooth loss; also known as periodontal disease.

Incidence

The rate or frequency at which a new event or case occurs in a specific population over a certain period of time.

Internally Valid

The extent to which a research study provides evidence of a cause-and-effect relationship between variables, within the context of the study.