The Normal Distribution and the Empirical Rule

By Jolene Hartwick

In this learning activity you'll use the Empirical Rule to calculate the percentages of data between two data points.

Statistical Data Types

By Thomas Pomykalski

Learners read about the different uses of the word "data." They will test themselves on examples of data that is singular, plural, qualitative, quantitative, nominal, ordinal, interval, rational, discrete, or continuous.

The Normal Distribution

In this learning activity you'll explore normal distribution and enter values for the mean and the standard deviation of normally distributed data and observe the resulting changes in the shape of the normal curve.

Stem and Leaf Plots (Screencast)

By Ann Krause

In this learning activity you'll create a stem and leaf plot.

The Standard Normal Distribution

In this learning activity you'll calculate the numeric value of an area when given the z scores.

The Area Under the Standard Normal Distribution

In this learning activity you'll identify and calculate the area under the normal curve specified by given z-scores.

Grouped Numerical Frequency Distributions - Establishing Class Boundaries: Sixth in a Series

Learners follow steps to establish class boundaries and tally the data using a spreadsheet.

Numerical Data Ordering

In this interactive object, learners read how to arrange numerical data manually by using ascending or descending order. They also practice arranging the data using a spreadsheet.

Grouped Numerical Frequency Distributions: An Overview -- First in a Series

In this interactive object, students read about organizing data in a tabular form. A brief quiz completes the activity. This is the first in a series of six learning objects.

Stem and Leaf Plots

Grouped Numerical Frequency Distributions Using Manual Means

In this learning activity you'll examine the terms associated with a grouped frequency distribution and follows the steps to construct a grouped frequency distribution using manual methods.

Ungrouped Numerical Frequency Distributions

Learners follow the steps required to construct an ungrouped frequency distribution using either manual methods or a spreadsheet.

Grouped Numerical Frequency Distributions - Identifying Low and High Values: Third in a Series

Students follow step-by-step directions for entering data into a spreadsheet and reporting the results.

Grouped Numerical Frequency Distributions -- Determining the Lower and Upper Limits: Fifth in a Series

Learners follow steps to establish the lower and upper limits in a spreadsheet.

Grouped Numerical Frequency Distributions - Definitions: Second in a Series

In this interactive object, learners read the definitions of terms associated with the construction of a grouped frequency distribution. A brief quiz completes the activity.

Creating Histograms

By Mary Lee Rudnick-Kaun

Students follow steps to transfer data from a list to a histogram.

Grouped Numerical Frequency Distributions - Determining the Range, Class, and Width: Fourth in a Series

Students examine an Excel spreadsheet to determine range, class, and width.