1. What is the line graph about?
2. At what age do teens have the greatest number cell phones?
3. At what age do teens have the least number of cell phones?
4. How many cell phones do 15 year-olds have?
5. About how many cell phones do 16year-olds have?
6. What was the greatest number of cell phones at any age?
7. What was the least number of cell phones at any age?