Please be patient with my English, as I am a native Korean and English is not my first language.
I want to write a story about a political organization built on fortune-telling.
Let us assume there are fortune-tellers who accurately predict the future more than 50% of the time, without any prior or inside information.
And, at this time, 'the probability' is not the probability of the fortuneteller's 'right foretell' but the probability that fortune-tellers present 'a right foretell'. [Edit: this sentence left as written.]
Here is my question.
If there is two fortune-tellers who have 60% chance of accurately answering a question about the future, is there a way to employ such fortune-tellers to increase the odds above 60%.
Would increasing the number of fortune-tellers to ten or more raise the odds of always making "right decisions?"
If possible, to optimize probability of accuracy, how should fortune-tellers foretell? [Edit: open-endedness of original preserved.]