Use the graph below to answer the following questions.
Heights of Youth Age 10-15 Year Old
Height (cm)
170
160
150
140
130
120
11
12
Age
13
14
15
a. Why is a scatterplot graph a good choice for representing this data?
b. Draw a best-fit line through the scatterplot graph. What does this line represent?
c. What is the average height of someone that is 14 years old?