Note: For complete details about the Distribution platform, see the Basic Analysis book.
 • Does the shape of the data match any known distributions?
 • Are there any outliers in the data?
 • What is the average of the data?
 • Is the average statistically different from a target or historical value?
 • How spread out are the data? In other words, what is the standard deviation?
 • What are the minimum and maximum values?
This example uses the Car Physical Data.jmp data table, which contains information about 116 different car models.
 • What is the average car weight?
 • How spread out are the cars’ weights (standard deviation)?
 • What are the minimum and maximum weights of cars?
 • Are there any outliers in the data?
 1 Select Help > Sample Data Library and open Car Physical Data.jmp.
 2 Select Analyze > Distribution.
 3 Select Weight and click Y, Columns.
 4 Click OK.
 5 To rotate the report window, select Display Options > Horizontal Layout from the red triangle menu next to Weight.
Distribution of Weight
 • A histogram and a box plot to visualize the data.
 • A Quantiles report that shows the percentiles of the distribution.
 • A Summary Statistics report that shows the mean, standard deviation, and other statistics.
Using the results presented in Distribution of Weight, the planning specialist can answer the questions.
 Question Histogram Quantiles Summary Statistics What is the average car weight? about 3000 lbs 2958 lbs How spread out are the weights (standard deviation)? 536 lbs What are the minimum and maximum weights? about 1500 lbs and 4500 lbs 1695 lbs and 4285 lbs Are there any outliers? No

The default report window in Distribution of Weight provides a minimal set of graphs and statistics. Additional graphs and statistics are available on the red triangle menu.
 1 From the red triangle menu for Weight, select Test Mean.
 2 In the window that appears, type 3000 in the Specify Hypothesized Mean box.
 3 Click OK.
Test Mean Results
 • How many levels does the variable have?
 • How many data points does each level have?
 • Is the data uniformly distributed?
 • What proportions of the total do each level represent?
 • What are the types of cars?
 • What are the countries of origin?
 1 Select Help > Sample Data Library and open Car Physical Data.jmp.
 2 Select Analyze > Distribution.
 3 Select Country and Type and click Y, Columns.
 4 Click OK.
Distribution for Country and Type
The report window includes a bar chart and a Frequencies report for country and type. The bar chart is a graphical representation of the frequency information provided in the Frequencies report. The Frequencies report contains the following:
 • Categories of data. For example, Japan is a category of Country, and Sporty is a category of Type.
 • Total counts for each category.
 • Proportion of the total each category represents.
Japanese Cars
Other Cars