document.write( "Question 1201361: Suppose Dan wins 40% of all his chess games.\r
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Algebra.Com's Answer #835680 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Suppose Dan wins 40% of all his chess games.
\n" ); document.write( "If Dan is to play 4 games, what is the probability Dan wins at least one game?
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document.write( "The event that Dan wins at least one game is the COMPLEMENT to the event that Dan \r\n" );
document.write( "loses all 4 games.\r\n" );
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document.write( "For this complementary event, the probability is  P =  =  = 0.1296.\r\n" );
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document.write( "Therefore, the answer to the problem's question is  \r\n" );
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document.write( "    1 -  = 1 -  = 1 - 0.1296 = 0.8704.\r\n" );
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