A line graph is the most useful type of graph for showing the relationship between two numerical variables. A bar graph can also be used since these two types of graphs are straightforward and simple.
A scatter diagram. A line diagram will not be as good at showing a relationship that is non-linear (not a straight line).
Graphs showing the relationship (or not) between two independent variables.
Time Series.
Linear
Linear
Line Graph
Line Graph
A scatter graph.
Inverse
inverse linear or quadratic
It is a formula, showing the relationship between two variables, w and a.
Line Graph
A scatter diagram. A line diagram will not be as good at showing a relationship that is non-linear (not a straight line).
Graphs showing the relationship (or not) between two independent variables.
Time Series.
Sociologists often use scatter plots to visually represent the relationship between two variables. This graphical tool helps quickly identify patterns and trends in the data, showing the strength and direction of the relationship between the variables.
Researchers term the situation as correlation. Correlation indicates a statistical relationship between two variables, showing how they move together but not necessarily implying causation. The strength and direction of the correlation can provide insights into the relationship between the variables.