What is correlation?
Q: What is correlation?
A: Correlation is a way to indicate how closely related two sets of data are.
Q: Does correlation mean that one set of data causes the other?
A: No, correlation does not always mean that one set of data causes the other. In fact, there is often a third factor involved.
Q: What are the two directions of correlation?
A: The two directions of correlation are positive and negative.
Q: What does a positive correlation mean?
A: A positive correlation means that the two sets of data go up together.
Q: What does a negative correlation mean?
A: A negative correlation means that one set of data goes up while the other goes down.
Q: Are there different measurements of correlation?
A: Yes, lots of different measurements of correlation are used for different situations.
Q: How do people often show the direction of correlation on a scatter graph?
A: People often draw a line of best fit to show the direction of the correlation on a scatter graph.
