Talk:Construction/@comment-25275851-20141003172748/@comment-198.99.28.241-20141003200627

^ the data on the sites like kancolle-db and  2are mined by these programs like KCV, automatically sent instead of user sent otherwise it's unthinkable that sites have a large sample size simply by user submission. The 2nd site even gives the time of success, manual submits would omit these details.

My method of calculation is simple, considering each time is 7% of success, that means 93% chance of failure. By using 93%^25 times you get a much smaller number which is 16.3%.