WHEN to use Scatter Graphs & HOW to DESCRIBE the data they show:
If you are taking 2 measurements of the SAME (living) thing and you want to see if they are CONNECED / RELATED, you:
  1. collect your data (measurements)
  2. plot them on the graph with xs
  3. draw a best-fit line (so you have the same nÂș of xs above and below the line)
Scatter graph 1.JPGScatter graph 2.JPG