Wednesday, May 31, 2017

Lesson 2: Observing Dot Plots

Welcome to the second part of the Data Analysis Series! In this lesson, we will be learning about observing dot plots.

Lesson 2: Observing Dot Plots

What is a Dot Plot? A Dot Plot is a numerical chart that organizes various numbers on a plot.

This is an example of a Dot Plot. First, we have to organize the numbers in order of value.
1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5

Now, let's answer some questions!

How many people were surveyed?  28

How many people had 4 family members or more? 5

What is the median number of family members in this survey? 3

What is the mean of family members in this survey? 2.78

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