Making good scatter plots

The  exercise appears under the 8th grade (U.S.) Math Mission. This exercise practices telling good scatter plots from bad ones.

Types of problems
There is one type of problem in this exercise:
 * 1) Which one of the scatter plots displays the data best?: This problem features a real-life example of scatter plots being used, and students are asked to find which scatter plot best fits the data from the example. Making good scatter plots.PNG

Strategies
Basic knowledge of scatter plots are required for success while doing this exercise.
 * 1) A good scatter plot has the independent variable on the x-axis and the dependent variable on the y-axis. The scale of both axes should be reasonable, making the data as easy to read as possible.