Scatter graphs

What you'll learn

1. 1

   Imagine you're a detective tracking how many hours your friends play video games and how happy they feel afterwards. 📊

2. 2

   What does each dot on a scatter graph show?

3. 3

   Plot these points on the scatter graph: (2 hours, 5 happiness) and (4 hours, 8 happiness). Tap the right spots!

4. 4

   Let's see if more hours = more happiness. Here's a scatter graph of 5 friends. 📝

5. 5

   If dots go up and to the right, what kind of correlation is that?

6. 6

   Draw a line of best fit through the dots on this graph — it should go roughly through the middle of the cloud of points.

7. 7

   What does a line of best fit help you do?