Odd / Even split
Whether you use the last 1039 draws or the full history of Lotto 6/49, you can fairly well find what are the percentages for each Odd/Even ratio. Just use the theorical values for each Odd/Even possibility; this can easily be calculated or obtained from many sites.
The following table provides for each ratio the following information: the Odd/Even ratio, the number of times it occured in 1983 draws, the percentage, the theorical number of times it should have happened and the theorical percentage.
A...0./.6...........17.....00.9%...........19.....01.0%
B...1./.5.........155.....07.8%.........151.....07.6%
C...2./.4.........459.....23.1%.........452.....22.8%
D...3./.3.........639.....32.2%.........660.....33.3%
E...4./.2.........498.....25.1%.........495.....25.0%
F...5./.1..........198.....10.0%.........181.....09.1%
G...6./.0...........17......00.9%..........25.....01.3%
As data shows, there is not much difference between actual values and theorical values and this is true for most statistics you can think of.
Overall for 1983 draws, not counting the bonus number, odd numbers have come out 6074 times and even numbers 5824 times. The theorical values can easily be calculated:
- for odd numbers: 1983 x 6 x 25 / 49 = 6070
- for even numbers: 1983 x 6 x 24 / 49 = 5828
(data being rounded to 0 decimals)