Introducing Symmetric and Skewed Data

Symmetric and Skewed Data

We are now going to classify data sets into \(\text{3}\) categories that describe the shape of the data distribution: symmetric, left skewed, right skewed. We can use this classification for any data set, but here we will look only at distributions with one peak. Most of the data distributions that you have seen so far have only one peak, so the plots in this section should look familiar.

Distributions with one peak are called unimodal distributions. Unimodal literally means having one mode.(Remember that a mode is a maximum in the distribution.)