Reviewed and Approved

Normal Distribution Interactive Activity

Resource ID#: 25754

Primary Type: Virtual Manipulative

This document was generated on CPALMS -

With this online tool, students adjust the standard deviation and sample size of a normal distribution to see how it will affect a histogram of that distribution. This activity allows students to explore the effect of changing the sample size in an experiment and the effect of changing the standard deviation of a normal distribution. Tabs at the top of the page provide access to supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

General Information

Subject(s): Mathematics
Grade Level(s): 9, 10, 11, 12
Intended Audience: Educators , Students
Suggested Technology: Computer for Presenter, Computers for Students, Internet Connection, Adobe Acrobat Reader, Java Plugin
Freely Available: Yes
Keywords: normal distribution, histogram, standard deviation, median
Instructional Component Type(s): Virtual Manipulative Teaching Idea
Resource Collection: CPALMS

Aligned Standards

Name Description
MAFS.912.S-ID.1.3: Interpret differences in shape, center, and spread in the context of the data sets, accounting for possible effects of extreme data points (outliers).
In grades 6 – 8, students describe center and spread in a data distribution. Here they choose a summary statistic appropriate to the characteristics of the data distribution, such as the shape of the distribution or the existence of extreme data points.
MAFS.912.S-ID.1.4: Use the mean and standard deviation of a data set to fit it to a normal distribution and to estimate population percentages. Recognize that there are data sets for which such a procedure is not appropriate. Use calculators, spreadsheets, and tables to estimate areas under the normal curve.