1. Chapter 2.4 McDougal Littell Middle School Math Course 1
Joseph Williams
Melvin E. Sine Elementary
Chapter 2.4
McDougal Littell Middle School Math Course 1
Objective: Create and interpret frequency tables and line plots.

2. Vocabulary
Data – pg information, often given in the form of numbers or facts.
Frequency Table – pg a table that displays the number of times each item or category occurs in a data set.
Line Plot – pg a number line diagram that uses X marks to show the frequencies of items or categories being tallied.

3. Making a Frequency Table
What is your favorite color?
To find out which color is chosen most often, we can make a frequency table.
MAKE IT!!

4. Line Plot
When the items or categories being tallied are numbers, a line plot can be used to visually display the data. A line plot uses X marks above a number line to show the frequencies.
X X X X X X
The X marks above the number line show the frequencies.
X X X X X
X X X X X
The Number Line shows the number of books read.
X X X X
X X 1 2 3 4 5 6 7
Number of Books Read

5. Your Turn Now How many siblings (brothers and sisters) do you have?
Let’s make a frequency chart for the class.