Which of the Following Is a Difference Between a Mean

question 40

Multiple Choice

Which of the following is a difference between a mean and a median?

• A) A mean divides the data half above it and half below it; a median does not.
• B) A median is not affected by outliers; a mean is affected by outliers.
• C) A mean is an observation that occurs most frequently; a median is the average of all observations.
• D) A median is not meaningful for ratio data; a mean is meaningful to ratio data.

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Definitions:

Novocain

A synthetic compound used as a local anesthetic in medical and dental procedures; it is often substituted for safer and more effective anesthetics today.

Sodium

A chemical element (Na) that is essential for life, involved in osmoregulation and nerve function.

All-Or-None Law

The principle that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fiber will fire.

Action Potential

A momentary change in electrical potential on the surface of a cell, especially a nerve or muscle cell, that occurs when it is stimulated, leading to the transmission of an electrical impulse.