Scatter Plot Math Definition
To illustrate let us pretend that you have a business that sells notebooks.
Scatter plot math definition. The variable or attribute which is independent is plotted on the x axis while the dependent variable is plotted on the y axis. A scatter plot or scatter plot graph is a graph which is drawn in cartesian coordinate to visually represent the values for two variables for a set of data. A scatter plot is a type of plot or mathematical diagram using cartesian coordinates to display values for typically two variables for a set of data. A graph of plotted points that show the relationship between two sets of data.
If the points are coded one additional variable can be displayed. Scatter plots are important in statistics because they can show the extent of correlation if any between the values of observed quantities or phenomena called variables. A scatter plot describes a negative trend if as one set of values increases the other set tends to decrease. Scatter plots are the graphs that present the relationship between two variables in a data set.
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. Scatter plots also called scatter graphs are used to show relationship between two sets of data by writing them as ordered pairs. A scatter plot describes a positive trend if as one set of values increases the other set tends to increase. It represents data points on a two dimensional plane or on a cartesian system.
In this example each dot represents one person s weight versus their height. Day 1 you sell 10 notebooks day 2 you sell 5 notebooks. It is a graphical representation that shows how one variable is affected by the other.