Lesson 5.2- Representing Data on Dot Plots

Represents statistical data consisting of numbers.

Numerical

Represents statistical data consisting of categories, types or groups.

Categorical

​A Dot Plot is a graph that can be used to represent numerical or categorical data.

A Dot Plot or other graphical representation of data helps to organize information in a way that it can be analyzed and inferences can be made.

• Analysis: Only 1 family has 6 children

• Analysis: More families have 1 child than any other amount

• Inference: People in this area prefer to have small families

We can use the data on a dot plot to draw conclusions about the Center (which represents where MOST of the data is clustered/grouped together) and the Spread (which represents how far apart the data is).