Each time that the wheel spins and the balls are mixed up, every number still remaining in the machine has an equal chance of being drawn. The fact that 1 has been drawn doesn’t make 2 coming out next any less likely. The likelihood of the first number drawn being 1 is 1 in 49 for a forty-nine ball draw. The chances of the second number being any of 2, 3, 4, 5 or 6 is then 1 in 48.