![]() ![]() The statistical relationship between two variables is referred to as their correlation. What is the correlation between the two variables? Each member of the dataset gets plotted as a point whose x-y coordinates relates to its values for the two variables. Which of the following is used to show correlation of two variables?Ī scatterplot is a type of data display that shows the relationship between two numerical variables. ![]() Scatter charts can also show the data distribution or clustering trends and help you spot anomalies or outliers. Good for showing the relationship between two different variables where one correlates to another (or doesn’t). Scatter charts are primarily used for correlation and distribution analysis. What kind of graph is best for showing the relationship between variables? If the data shows pronounced trends or reveals relations between variables, a graph should be used. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space. Graphs are a common method to visually illustrate relationships in the data. ![]() ![]() How does graphing is used to represent data? Sometimes it’s useful to show more than one set of data on the same axes. The graphs we’ve discussed so far are called line graphs, because they show a relationship between two variables: one measured on the horizontal axis and the other measured on the vertical axis. If the data points make a straight line going from the origin out to high x- and y-values, then the variables are said to have a positive correlation. The relationship between two variables is called their correlation. Scatter plots show how much one variable is affected by another. How does a graph show the relationship between two variables?
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