Theoretical house edge is what you are pertaining and I doubt this will be helpful on proving your case due to the small sample size.
You do not need a huge sample size to prove that games are rigged!
The only difference is, the smaller the sample size, the higher is the maximal possible deviation from the expected outcome = advertised house edge.
But if your experienced deviation is substantial higher than the maximal possible deviation, then this is always proof that the game is rigged!
My case is 100% proven:
https://bitcointalk.org/index.php?topic=2178857.msg64908309#msg64908309No one here will have free time to check your bets 1 by 1 to determine how do you play so I suggest seek help of 3rd party arbitrator to deal with your case.
No one will check 180,900 bets manually and it is also not necessary because Stake did not dispute my claim.
They did not say that my playing style caused a 4,6% house edge and they also did not dispute the validity of my Stake statistics.
Their nonsense explanation why I experienced a 9 times higher deviation like maximal possible is that only after 1 million bets the RTP applies.
The law of great numbers determines the maximal possible deviation depending on the number of bets, but the sickheads at Stake ignore the reality and instead make nonsense claims!
The user has reached out to the complaints department more than 30 times for the same inquiry.
Regarding RTP, it's important to note that this figure is based on a calculation involving at least 1 million bets.
In short sessions with a few hundred or thousand bets, variability is expected, it is impossible to make accurate calculations based on these sessions.
Overall, the frivolous claims made by this User have been explained to them many times by Support and other members of the community:
https://bitcointalk.org/index.php?topic=2178857.400.
It is clear to us that there are no ground for reimbursement.