Read this the right way. Every cell is a sample, not a trend. Over 100 rounds at 2× the RTP swings roughly ±20 points
on pure chance, so a 78% or a 121% window is completely ordinary. The z column is the honest
measure — it says how many standard deviations the hit count sits from expectation. Past rounds do not change the next
round: the probability of clearing any target is fixed for every round, forever.