This site is a part of the JavaScript E-labs learning objects for decision making. Other JavaScript in this series are categorized under different areas of applications in the MENU section on this page.

Professor Hossein Arsham   

Enter your up-to-80 sample data. Use either an integer, or decimal but not fractions, such as 2/3. Then click the Calculate button. Blank boxes are not included in the calculations but zeros are.

In entering your data to move from cell to cell in the data-matrix use the Tab key not arrow or enter keys.

To edit your data, including add/change/delete, you do not have to click on the "clear" button, and re-enter your data all over again. You may simply add a number to any blank cell, change a number to another in the same cell, or delete a number from a cell. After editing, then click the "calculate" button.

For extensive edit or to use the JavaScriptfor a new set of data, then use the "clear" button.

For a JavaScript that computes and graph histogram of a given set of data as a tool in checking the unimodality of the population, you may use Test for Homogeneity of a Population. Notice that, in most cases the last frequency has an open-end class of its own

Observations Max
Mean (Average) Min
Variance Range
Standard Deviation 1st Quartile
Coef. of Variation Coef. of Quar. Var.
Skewness 3rd Quartile
Kurtosis InterQuartile
Mean St. Error Quartile Deviation
Median Mean Abs. Devia.
Class Width No. of Classes:

For Technical Details, Back to:
Statistical Thinking for Decision Making

Kindly email your comments to:
Professor Hossein Arsham