uppose that there are 100 security flaws in a particular software project and we can list these flaws in such a way that security flaw i requires i hours of testing to find. That is, it takes one hour...

uppose that there are 100 security flaws in a particular software project and we can list these flaws in such a way that security flaw i requires i hours of testing to find. That is, it takes one hour to find flaw number one, two more hours to find flaw number two, three more hours to find flaw number three, and so on. What is the MTBF for this system?