Put everyone in a numbered sequence unknown to them. Add their chosen number to their sequence number, mod 10.
This re-maps everyone’s choices so they actually have no idea what number they are actually choosing and efficiently redistributes the bias in their choices without massively complicated functions. It is also robust to changes in the distribution pattern. However it would only work well if you had at least 10 people and the number of people is divisible by 10.
This re-maps everyone’s choices so they actually have no idea what number they are actually choosing and efficiently redistributes the bias in their choices without massively complicated functions. It is also robust to changes in the distribution pattern. However it would only work well if you had at least 10 people and the number of people is divisible by 10.