document.write( "Question 1122845: Each state of the 50 in the United States has two senators. In how many ways may
\n" ); document.write( "a majority be achieved in the U.S. Senate? Ignore the possibility of absence or
\n" ); document.write( "abstention. Assume that all senators are present and voting.
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Algebra.Com's Answer #739026 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Each senator can vote either of 2 ways.

\n" ); document.write( "The number of different ways the 100 senators can vote is 2^100.

\n" ); document.write( "That total number of ways, 2^100, is equal to

\n" ); document.write( "100C0 + 100C1 + 100C2 + ... + 100C99 + 100C100

\n" ); document.write( "The only way not to get a majority (one way or the other) is if the vote is 50-50. The number of ways that can happen is 100C50.

\n" ); document.write( "So the number of ways to get a majority (one way or the other) is then

\n" ); document.write( "2^100 - 100C50

\n" ); document.write( "If you mean the number of ways of getting a majority \"yes\" votes, it is

\n" ); document.write( "(2^100 - 100C50)/2
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