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Committee membership in the senate

A club contains 100 members; 51 are Democrats (or caucus with
Democrats) and 49 are Republicans. A committee of 10 members is
chosen at random.

  1. Compute the probability of Republicans on the committee for \(n=1,…,10\).
  2. Find the probability that the committee members are all the same party.
  3. Suppose you didn’t know how many Democrats there were in the senate. You observe that the committee of \(10\) members consists of \(k=7\) Democrats. Compute \(\mathbf{P}(M|k=7) \), where  \(M\) is the number of Democrats in the Senate.

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