# Scatter Diagrams

What is a scatter plot? If you are still having problems understanding scatter plot, better look at the following examples of the diagram in the following images below. Examine the following scatter diagram.

A scatter diagram is a type of plot or mathematical diagram which displays values for typically two variables for a set of data. If the points are color-coded, one additional variable can be displayed. The data are displayed as a collection of points, each having the value of one variable determining the position on the horizontal axis and the value of the other variable determining the position on the vertical axis. Look at the examples in the following diagrams.

A scatter plot can suggest various kinds of correlations between variables with a certain confidence interval. For example, weight and height, weight would be on y axis and height would be on the x axis. Correlations may be positive (rising), negative (falling), or null (uncorrelated). If the pattern of dots slopes from lower left to upper right, it indicates a positive correlation between the variables being studied. If the pattern of dots slopes from upper left to lower right, it indicates a negative correlation.

Hopefully after reading and examining the scatter diagram examples above, you will have better understanding of scatter diagram. All of the printable diagrams are free, you can just click on it and save or print for your reference!