If a Particular Set of Data Is Approximately Normally Distributed

question 181

Multiple Choice

If a particular set of data is approximately normally distributed, we would find that approximately

• A) 2 of every 3 observations would fall between ±1 standard deviation around the mean.
• B) 4 of every 5 observations would fall between ±1.28 standard deviations around the mean.
• C) 19 of every 20 observations would fall between ±2 standard deviations around the mean.
• D) All the above.

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Definitions:

Response

In statistics, the answer or reaction to some stimulus or experiment; in communication, it's the reply or reaction to a message or question.

Air Pressure

The force exerted onto a surface by the weight of the air above that surface in the atmosphere of Earth.

Altitude

The height of an object or point in relation to sea level or ground level.

Moderately Strong Association

A term indicating a significant but not perfect relationship between two variables in statistical analysis.