Unit 1 Contents

1. Think of numerical variables you would like to study about your classmates. Add these variables to the table you created in Lesson 1. List possible values for each variable.
2. With your class, choose a numerical variable you wish to study that helps you describe your class. Choose from those variables you listed in Question 1.

Collect the data and organize it in a class table.

Graph the data in a bar graph. Use Centimeter Graph Paper. Be sure to title your graph and label the axes.

1. Which variable is on the horizontal axis on your graph?
2. What values for this variable are shown on the graph?
3. Is this variable a categorical or a numerical variable? How do you know?
1. Which variable is on the vertical axis on your graph?
2. Is this variable a categorical or a numerical variable? How do you know?
1. Which bar is the tallest on your graph?
2. What does the tallest bar represent?
1. Which bar is the shortest on your graph?
2. What does the shortest bar represent?