Pool Hash rate = 7000 TH/s
128% probability to win a block in 1 month
Alas these are wrong. There is no such thing as 100% probability with mining which is a stochastic process. It keeps approaching 100% but never gets there.
Maybe better to say
Your Hash rate = 13 TH/s -> If you have neutral luck you will mine 1 block in 35,55 years
Pool Hash rate = 7000 TH/s -> Having neutral luck 1 block will be mined in 24 days (or 1.28 blocks in 1 month, even it is imposible to mine 0,28 blocks)
Definetively, 128% luck doesn't make any sense
128% luck would make sense. Just not 128% probability, right?