Asked by Jessica
If i have ten grains of sand on a flat, 8x8 chessboard, randomly distributed, what is the probabilty that all ten are on the same square?
Answers
Answered by
bobpursley
The important thing is that the probability of a grain of sand to be one one square is equal.
Pr(on a particular square)=1/64
So if we put a grain on any one square, the next 9 have to be on that next square. The probability of that is
Pr(10 on same square)=1*(1/64)^9
which is exceedingly small.
Pr(on a particular square)=1/64
So if we put a grain on any one square, the next 9 have to be on that next square. The probability of that is
Pr(10 on same square)=1*(1/64)^9
which is exceedingly small.
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