There are 1000 straight pick 3 numbers.
Each of them has a 0.1% chance to come out.
To have a 1% chance of winning, a person most play any 10 straight pick 3 numbers.
Straight numbers are 1 way numbers.
Any-order or boxed numbers are:
Triples are 1 way numbers.
Doubles are 3 way numbers.
Singles are 6 way numbers.
Each triple has a 0.1% chance.
Each double has a 0.3% chance.
Each single has a 0.6% chance.
So you would need to play 2 times as many doubles to get the same chance as singles, but doubles pay 2 times as much as singles, so they might turn out to be equal.
As boxed singles have a 0.6% chance then:
10 have a 6% chance.
20 have a 12% chance.
30 have a 18% chance.
40 have a 24% chance.
80 have a 48% chance, yet they pay only $80.
You would have to play all the:
120 singles, 90 doubles and 10 triples = $220 to have a 100% and to then win either $80 for a single (72% chance), $160 for a double (27% chance) or $500 for a triple (1% chance).
According to all of that, singles and doubles are equal bets, that is, neither of them is better than the other one.
These things might be important if later I check any future predictions against the odds of winning or "Random"
I figured these things out by myself, so I am not 100% sure if I am right or not.