document.write( "Question 1147982: Two employees will be chosen at random from a group of five to go to a conference. What is the probability that employee 3 and employee 5 will be chosen?\r
\n" ); document.write( "\n" ); document.write( "5C2=5*4*3*2*!/(3*2*1)(2*1)=20 So 20 total combinations but then I didn't know what to do. I tried various ways but could not come up with one of the multiple choice answers\r
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Algebra.Com's Answer #769338 by ikleyn(52817)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "In all, there are  \"C%5B5%5D%5E2\" = \"%285%2A4%29%2F2\" = 10 possible combinations (= unordered pairs) of 5 employees taken 2 at a time.\r\n" );
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document.write( "    (It is your space of events in this problem).\r\n" );
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document.write( "Of them, only one unordered pair (3,5) is favorable.\r\n" );
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document.write( "Thus the probability under the question is  \"1%2F10\".    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved, answered and explained.\r
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\n" ); document.write( "\n" ); document.write( "To develop your knowledge on the subject, look into the relevant lessons on Combinations\r
\n" ); document.write( "\n" ); document.write( "    - Introduction to Combinations\r
\n" ); document.write( "\n" ); document.write( "    - PROOF of the formula on the number of Combinations\r
\n" ); document.write( "\n" ); document.write( "    - Problems on Combinations\r
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\n" ); document.write( "\n" ); document.write( "and into the relevant lesson on Probability \r
\n" ); document.write( "\n" ); document.write( "    - Elementary Probability problems related to combinations \r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topics
\n" ); document.write( "  \"Combinatorics: Combinations and permutations\"  and  \"Solved problems on Probability\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "into your archive and use when it is needed.\r
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