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Sun Jun 7 15:06:40 CEST 2009

Counting votes.

Representing a non-negative integer as a number of 1 bits in a bit
vector allows the use of concatenation as addition.

Let's investigate the effect of dropping 1 bit at random from a length
n bit vector.  More specificly, given the expected value of the number
of 1 bits in a vector, calculate this value after dropping one bit at
random.

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