If the standard deviation for a set of data is 0, which of the following must be true?_
A) All the data values equal 0.
B) All of the data values are identical.
C) All of the data values are negative.
D) None of the above must be true since standard deviation cannot be equal to 0.

Question

Quizplus · Accepted Answer

When the standard deviation of a dataset is 0, it means there is no variability among the data values, implying that all data values are identical. This does not necessarily mean that all values are 0, negative, or that a standard deviation of 0 is impossible.

If the Standard Deviation for a Set of Data Is