It really shows that you are not a math guy.
You do not understand the concept, that we are actually showing you, that the odds of pulling a leggo from a sacred or an ancient remain the same. But we calculate the probability of having a leggo after pulling a number of shards.
For a single draw, the odds remain the same....but if you pull 100 ancient shards, you will have 100 times the odds of 0.5 % to pull a leggo. The probability is higher since with the number of shards pulled, the probability will get higher.
Simple example:
Roll a six-sided die once. The odds to get a 6 on your roll are 16.7%
Roll a six sided die once again. The odds to get a 6 is 16.6% again. The probability to NOT get a 6 has been reduced.
If you now roll the six-sided die 20 times, the probability that you do NOT have a 6 rolled on one of those rolls is (5/6 [odds of not getting a 6])°20 = 2,6 %
Neither of your or your family experiences and knowledge has anything to do with probability. I have a master degree in mechanical engineering...somehow I suspect that I know maths better than you do.
You can also rant about our numbers being not correct...the point is, Krama was spot on with his numbers the first time. If you cannot distinguish between odds and probability, neither degree in history or philosophy will help you.
Matrim, I already did this example, and it didn't seem to land.