Use some thinking to answer the following question. Twenty coins are tossed simultaneously. In how many of the outcomes will the third coin turn up a head?\nOptions:\n(A) 2^19\n(B) 2^10\n(C) 3 * 2^8\n(D) 3 * 2^9\n(E) 3 * 2^10
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Fix the third coin as H. The remaining 19 coins have 2^19 outcomes. So the final answer is (A).
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