1024 historians assuming they all pick different combinations at random. Probability of randomly guessing at least 9 of 10 goes up to 1.075% or 93 historians (on average to get one person with 9/10 predictions right) or like the other commenter mentioned 1024-11= 1013 to guarantee a 9/10 but that’s a little overkill.
1024 historians assuming they all pick different combinations at random. Probability of randomly guessing at least 9 of 10 goes up to 1.075% or 93 historians (on average to get one person with 9/10 predictions right) or like the other commenter mentioned 1024-11= 1013 to guarantee a 9/10 but that’s a little overkill.
Where does the 93 come from? The percentage is almost correct, but it should be 11 (1.074%)
93 for 1/0.01075