Three yes slices, three no slices, even odds. The answer is drawn before the wheel moves.
How the odds are set
The wheel opens with six slices, three yes and three no, so each answer has an even chance. The odds follow the lines in the list and nothing else. Add one “Maybe” and the wheel has seven slices: yes three in seven, no three in seven, maybe one in seven.
You can tilt the wheel on purpose. Four yes and two no is a two-in-three wheel, useful when you already lean one way and want chance to have the last word only sometimes.
Use the spin to find out what you want
A yes-or-no wheel is at its most useful a second before it stops. If you catch yourself hoping for one of the answers while it slows down, you have your decision, whatever the pointer says. Take the result as a suggestion and your reaction to it as the information.
For questions that deserve more than a spin
A wheel is fine for dessert or no dessert. For a job offer or a move, list what matters and score the options in the decision matrix. For a plain two-way call between people, a coin flip is quicker to explain.