Unit 1 Contents

1. Look back at Room 204's graph called Number of Blocks We Live from School. Is the variable they graphed on the horizontal axis numerical or categorical?
2. Is the variable they graphed on the vertical axis numerical or categorical?
1. Would Room 204's graph be as easy to read if the numbers (values) on the horizontal axis were not in order? Explain.
2. Does it matter in what order you label the horizontal axis when the variable is categorical? Refer back to Room 204's Main Interests graph in Lesson 1.
9. What story does the graph tell you about the students in Room 204?
1. How many students in Room 204 live 3 blocks or less from school?
2. Is this more or less than half the class?

Check-In: Questions 11–14

You will need one sheet of Centimeter Graph Paper to complete this Check-In.

11. Room 204's Phoenix pen pals sent back the following data on the number of times their families have moved. Use the data to create a bar graph. Remember to label the axes and title your graph.
12. Answer the following questions using the bar graph you drew in Question 11.
1. Is the variable on your horizontal axis numerical or categorical?
2. Is the variable on your vertical axis numerical or categorical?
3. Which is the tallest bar on the graph? What does it tell you?
4. What is the most number of times any student has moved? How do you know?
5. Describe the shape of your graph.