When summarizing data, why is it important to report both the mean and the standard deviation?
A)two sets of data could have the same mean but different amounts of variability
B)this way both descriptive and inferential statistics are covered
C)this way the null hypothesis can be evaluated
D)this enables the researcher to avoid Type I and Type II errors

Question

Quizplus · Accepted Answer

The mean provides a measure of central tendency, while the standard deviation provides information about the variability or spread of the data. Two datasets can have the same mean but differ in how spread out the data points are, which is captured by the standard deviation.

When Summarizing Data, Why Is It Important to Report Both