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--------------------------------------------------------------------------------4 out of 5 recent US Presidents have been left handers? Given that 1 in 10 of the population is left handed what is the probability of this? Say it was taking socks out of draw with the light off.. 1 White to 9 Black. What are chances of having 4 White and 1 Black.. I get 0.00045 ??More accurately what is the probability that a continuous sequence of 5 presidents out of 43 has 4 left handers?

The probbility is 100% because they do.