Posted by **mike** on Sunday, July 24, 2011 at 7:02pm.

A population of 300 voters contains 147 Republicans, 135 Democrats, and 18 independents and members of other parties. A simple random sample of 30 voters will be drawn from this population. Consider repeatedly drawing simple random samples of size 30 from the population (taking each simple random sample from the full population of 300 voters). The expected value of the number of simple random samples of size 30 that must be drawn until (and including) the first sample that contains at least one voter who is neither a Democrat nor a Republican is _______ ?

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