Begin by going to this website:
http://noppa5.pc.helsinki.fi/koe/3d3.html
Your picture should look something like this:
Answer all questions in complete sentences.
1. Move the hand over to the 2 dimension projects. When viewing X2 and X1 do the points appear to have a high correlation? What in the picture helps you make this decision? Describe how the points are scattered. Is the correlation negative or positive?
2. Move the hand over to the 2 dimension projects. When viewing Y and
X1 do the points appear to have a high correlation? What in the picture
helps you make this decision? Describe how the points are scattered.
3. Move the hand over to the 2 dimension projects. When viewing Y and X2 do the points appear to have a high correlation? What in the picture helps you make this decision? Describe how the points are scattered.
4. Move the hand over the Scatterplot matrix. Describe what you are seeing
in the six displays.