Worked examples
Two examples
Example 1
Points on a scatter plot rise from left to right. What kind of correlation?
- As one quantity goes up, so does the other.
Answer: Positive
Example 2
Points fall from left to right. What kind of correlation?
- As one goes up, the other goes down.
Answer: Negative
Where this is taught: Quiz 38: Reading Graphs, “Scatter plots: two things at once”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Tap your answer to each one, then press Check my answers at the bottom.Circle your answer to each one. The answer key, with the reasoning, is on the last page.