Did you know that one number that hit once within 25 trails has the same random walk as EC.
So if a window of 25 trails goes by and you number does not hit - then you got black once.
If you get a new window with 25 trails with no hit then you get Another black.
Now if you get your number hit once within 25 trails you have red.
Ask Bayes ... he can explain the probability and math behind it.
Cheers