Emily kept a record of the number of hours she studied and the test grades that she received. Examine the graph of this relationship and determine if it shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation.
This graph shows how a chemical reacts to changing temperature. Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. Which graph is the best example of a negative correlation? Click on each image to check your answer. This graph shows the height and arm span for a group of 10 people. This graph shows the age of 20 people and the number of pets they own.
Skip to main content. Introduction to Scatterplots A scatterplot displays a relationship between two sets of data. Example 1. Example 2 Emily kept a record of the number of hours she studied and the test grades that she received. Example 3 This graph shows how a chemical reacts to changing temperature.
Median lines are drawn so that 12 points fall on each side for both percent purity and ppm iron. Then they look up the limit for N on the trend test table. Q is equal to the limit. Therefore, the pattern could have occurred from random chance, and no relationship is demonstrated. Scatter Diagram Example. You can also search articles , case studies , and publications for scatter diagram resources.
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What is a Scatter Diagram? Quality Glossary Definition: Scatter diagram Also called: scatter plot, X-Y graph The scatter diagram graphs pairs of numerical data, with one variable on each axis, to look for a relationship between them. If you're seeing this message, it means we're having trouble loading external resources on our website.
To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Donate Login Sign up Search for courses, skills, and videos. Math Statistics and probability Exploring bivariate numerical data Introduction to scatterplots. Constructing a scatter plot. Scattergram, Scatter Plot, Scatter diagram, x-y plot.
Example Scatterplot from NC State University "With a scatter plot a mark, usually a dot or small circle, represents a single data point. The scatter-plot matrix: a great tool: a nice example from JunkCharts about using scatterplots as a matrix Guide What is a Scatterplot : This website provides a tutorial on using and reading scatter plots and includes an opportunity to test what you have learnt at the conclusion of the lesson.
Sources Stat Trek. Visualize data. A special thanks to this page's contributors. Stephanie Evergreen. Alan Mountain. Mundie Salm.
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