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.

Question

Quizplus · Accepted Answer

The shape of a normal distribution is similar to a bell curve, which makes the mean a useful measure of central tendency for the data.

The Mean Is Especially Useful When the Data Are What