6 spins

[FreeRoulette]

In 6 spins, how many of the 6 dozens with hit?

This is the result for a million trials. 
It shows for example 1: Count :118 means that 118 times out of million, only 1 dozen hit in 6 spins.

So, do these results show that it is best to bet 4 of the 6 dozen to get 50% or best to play 3 of the 6 dozen because there is a 50% chance that 4 dozen will hit?

Total: 1000000
1 : Count: 118 Percent: 0.0118
2 : Count: 19906 Percent: 1.9906
3 : Count: 231948 Percent: 23.1948
4 : Count: 500361 Percent: 50.0361
5 : Count: 232093 Percent: 23.2093
6 : Count: 15574 Percent: 1.5574

[FreeRoulette]

In 6 spins, how many of the 6 dozens with hit?

This is the result for a million trials. 
It shows for example 1: Count :118 means that 118 times out of million, only 1 dozen hit in 6 spins.

So, do these results show that it is best to bet 4 of the 6 dozen to get 50% or best to play 3 of the 6 dozen because there is a 50% chance that 4 dozen will hit?

Total: 1000000
1 : Count: 118 Percent: 0.0118
2 : Count: 19906 Percent: 1.9906
3 : Count: 231948 Percent: 23.1948
4 : Count: 500361 Percent: 50.0361
5 : Count: 232093 Percent: 23.2093
6 : Count: 15574 Percent: 1.5574

I used dozens, but I meant 6 groups, dozens is a bad example. If the wheel is divided into equal groups, then is it always best to bet half the groups?