All values of the data appear with the same frequency.

The mean of the data is also zero.

**All of the data have the same value**.

There are no data to begin with.

Skip to content
# What does it mean when a data set has a standard deviation equal to zero? (STA301)

Education Website

The mean of the data is also zero.

**All of the data have the same value**.

There are no data to begin with.