Software Testing: The Lincoln Index

There is an estimate for the number of bugs in a program that is called the Lincoln Index. It is really easy to calculate.

There is a great explanation on this here:

 

http://leankit.com/blog/2015/12/how-many-bugs-are-left-the-software-qa-puzzle/

Additionally:

http://serverdude.dk/?p=324

And something related:

https://en.wikipedia.org/wiki/German_tank_problem