And you should remember one thing: stats have no memory. After the 5th successful bombing the bomber should be shot down according to theory. Probably it won’t. Or the bomber gets shot down on the 1st bombing; and you send a 2nd bomber considering that now the odds are 1/11 that it will be shot down. But it does get shot down by the AA right away.
On the long run (and that can be millions or zillions of tries) the stats work out. On the short one…
yo. the odds for a single event are not influenced by the events that happened before. otherwise you could become a rich man by throwing a fair (!) coin secretly until you get a very very very long row of heads, and then bet a huge amount on tails :-D