Answer:
If a scatter plot has no association, its values are random and there is no line of best fit that can be drawn.
Step-by-step explanation:
When we talk about association, we are asking if there is a relationship between two variables. If I change one thing, will the other change in a predictable way? When there is no association, there isn't a relationship between the two variables.
Scatter plots show the raw data values, and maps them onto a graph. When there is a relationship between two values, we can see it, because some kind of shape forms on the graph.
In the picture below, we see that there is still a relationship when there is a non-linear (not straight) relationship between two variables. But when there is no association, there is no relationship (or at least not a predictable one).
https://www.google.com/url?sa=i&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwiu2JbP9OXhAhUNfisKHbK7BaAQjRx6BAgBEAU&url=https%3A%2F%2Fwww.mathbootcamps.com%2Freading-scatterplots%2F&psig=AOvVaw2z2g0UD0xplTetdYJI04cX&ust=1556098454681396
