This program does nothing except what can already be done on the OS, but in a less user-friendly manor.
You can do better in your head.
The built in functions are better. You even have to input the data in list format and it does not display the results in a useful manor.
It does work, as claimed.
The OS can give you all of the 1 variable statistics of a list, with better input and more output.
I cannot see why anyone would need this program.