Relationship between two variables shown in a line diagram

Introduction:
A line diagram is a graphical representation of data that displays information as a series of data points connected by straight line segments. It is used to show the relationship between two variables, which are usually plotted on the x and y axes.

Steps to create a line diagram:
To create a line diagram, follow these steps:
- Determine the two variables you want to display and label the x and y axes accordingly.
- Plot the data points representing each variable on the graph.
- Connect the data points with a straight line.

Interpreting a line diagram:
A line diagram can provide a lot of information about the relationship between two variables. Here are some things to look for when interpreting a line diagram:
- Direction of the line: If the line slopes upwards from left to right, it indicates a positive relationship between the variables. If it slopes downwards, it indicates a negative relationship.
- Steepness of the line: The steeper the line, the stronger the relationship between the variables.
- Clustering of data points: If the data points are clustered around the line, it indicates a strong relationship between the variables.
- Outliers: Data points that fall far away from the line may be outliers and should be investigated further.

Conclusion:
A line diagram is a useful tool for displaying the relationship between two variables. It can provide valuable insights into the nature of the relationship and can be used to make predictions about future trends.