document.write( "Question 576800: Hi,\r
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document.write( "There are 12 red beads and 12 green beads. Choose 4 beads randomly.\r
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document.write( "1. What are the chances that 4 out of 4 beads will be red?\r
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document.write( "(12/24)^4 seems correct. But why wouldn't 12C4/24C4 be correct? I'm having trouble understanding when to use which formula.\r
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document.write( "2. What are the chances that 3 out of 4 beads will be red?\r
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document.write( "12C3+12C4/24C4 <--- is this correct?\r
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document.write( "Thanks! \n" );
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Algebra.Com's Answer #370003 by sudhanshu_kmr(1152)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "1. 12C4 / 24C4\r \n" ); document.write( "\n" ); document.write( "2. [ 12C3 * 12C1] /24C4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if any doubt, feel free to ask...\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |