Even on an unbiased wheel the numbers will rarely have equal frequencies due to random fluctuation except over an extremely large sample size.
Assuming that all wheels are biased-which is questionable this isn't that interesting in itself. A weakly biased number with probability of occurrence of say 1/34 isn't worth betting on because of the high variance associated with a 35-1 shot even if you could actually verify it existed. A sector might be-but mainly you are looking for strong bias of <1/30.
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