ANSWERS: 2

Depending on the wheel, there are single and double zero wheels. With the assumption that it is a double zero wheel, with both a 0 and 00 and that these numbers are neither odd or even, and as is standard, the other numbers are from 1 to 36. Chance of getting even  47.37% Chance of getting odd  47.37% Chance of getting less than 10 (1 through 9)  23.68% http://en.wikipedia.org/wiki/Roulette

Excluding the zero, which is usually not counted as an even or odd number, then there are 18 even numbers and 18 odd numbers. 1. 18 out of 37 = 48.65% 2. 18 out of 37 = 48.65% 3. 9 out of 37 = 24.32%
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