In our study of the Lotto 649 data, the first thing looked at was the odd/even breakdown of the winning numbers.
Our table is an overview of the odd/even breakdown of an aggregate of all winning numbers. Certain combinations do seem to come up more often than others. Clearly, if you are trying to anticipate the winner numbers, your draw combinations of numbers should include 3 even/3 odd numbers or 4 even/2 odd numbers.