For example, you could look at the daily sales of ice cream and the daily high temperature as the two variables at play in a graph and find a crude linear relationship between the two. A positive ...

Support a conclusion by saying what the graph shows, such as if there is a relationship between the two variables. A good way of describing the relationship is to say what happens to one variable ...

A correlation is not used to describe a scatter diagram that shows no relationship between the two variables. Image caption, This scatter diagram shows the age of a car and its value. This graph ...

In most cases it is to show that there is a relationship between the variables ... learned two things. First, graphs are important. Second, I can get a little carried away with physics---sometimes.