The Mean Is Especially Useful When the Data Are What

question 19

Multiple Choice

The mean is especially useful when the data are what statisticians call "normally distributed." This means :

• A) if you graphed the data, it would form a shape similar to a bell curve.
• B) values are placed into numerical order, and the middle value is determined.
• C) the data falls within the "fiftieth percentile."
• D) the distribution of a group is how spread out it is, or how dispersed the data are.

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