This applet contains a 4 category data and associated frequencies in a table.
I frequency is unknown.
The values of the categories and frequencies (except the unknown frequency) can be changed in the Spreadsheet view.
You can also change the description of the problem.
It is useful for classroom presentation on mean median and mode of tabulated (grouped) data as :
1. It provides a visual presentation of individual data in from the table sorted from smallest value to largest
2. In Graphics 2, the user can search visually for the solution of unknown for question (a) mode and (b) median.
