If you are working with single digits like (4)85 then it is a 50% to 50% choice either High or Low, either Odd or Even, but if picking the digit itself it can be any digit from 0 to 9 so for that it is a 1 out of 10 choice or 1/10 % out of 10/10 %.
If filtering out 1 digit out of 10 then there is a 90% chance of success.
If predicting 1 digit out of 10 then there is only 10% chance of success.
If predicting a 0 or 1 condition like on or off or High or Low or Even or Odd then there is a 50% chance of success, the same for filtering out 1 state or condition (Pattern) out of 2 (Patterns).
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For 2 digits you have:
HH
LL
HL
LH
4 Conditions or Patterns.
Same for:
EE
OO
EO
OE
The chances of predicting right 1 of those 4 patterns might be 1/4 or 1 out of 4 or 25%.
While the chances of success in filtering out 1 of the 4 patterns might be 75% if you filter out ONLY 1 of the 4 Patterns and no more of them, it is the same for High-Low as it is for Even-Odd.
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For for 2 digits numbers you have 100 pairs from 00 to 99.
The chances of predicting 1 pair right might be 1/100 or 1 out of 100 or 1%.
The chances of success in filtering out 1 pair are 99% if you are filtering out ONLY 1 pair and no more.
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For 3 digits or the Full pick 3 number there are 1000 straight combos and 240 Boxed combos, also there are 8 possible High-Low patterns and also 8 possible Odd-Even patterns, there are OVERALL 4 Mostly-High conditions and 4 OverAll Mostly-Low conditions or patterns.
Also 4 Mostly-Odd patterns and 4 Mostly-Even patterns.
The chances of predicting a 3 digits number RIGHT might be 1/1000 or 0.1% and of filtering out a 3 digits numbers RIGHT 999/1000 or 99% chance of success if you filter out only 1 of the 1000 digits.
As for predicting right 1 pattern out of 8 or 1/8 your chances are about 12.5% or 1/8.
As for filtering out right 1 pattern out of 8 then your chances of success might be 7/8 or maybe about 87.5%.
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About COMPOUND filters or patterns such as High-Low+Even-Odd:
Example: HLH-OOE (HLH+OOE) the very same thing applies, but in this case we will have 64 possible patterns instead of just 8 of them as 8x8=64.
The percents depend on the number of patterns and how many of the patterns will be either predicted and or filtered out as the case might be.
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Anything else?