document.write( "Question 1021686: The table below shows the grade-level distribution for the school basketball team.\r
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document.write( "freshman-2
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document.write( "sophomore-4
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document.write( "junior-8
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document.write( "senior-15
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document.write( "A local television station wants to interview 8 students from the team. How many different ways can exactly 4 seniors and 4 juniors be selected for the interview? \n" );
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Algebra.Com's Answer #637445 by mathmate(429)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Question: \n" ); document.write( "The table below shows the grade-level distribution for the school basketball team. \n" ); document.write( "freshman-2 \n" ); document.write( "sophomore-4 \n" ); document.write( "junior-8 \n" ); document.write( "senior-15 \n" ); document.write( "A local television station wants to interview 8 students from the team. How many different ways can exactly 4 seniors and 4 juniors be selected for the interview? \n" ); document.write( " \n" ); document.write( "Solution: \n" ); document.write( "Here the question is how many different ways can 4 seniors and 4 juniors be selected. So the freshmen and sophomores don't really count. \n" ); document.write( "Seniors can be chosen 4 out of 15, so C(15,4) ways. Juniors can be chosen 4 out of 8, so C(8,4) ways. \n" ); document.write( "The total number of ways is the product of the two, namely \n" ); document.write( "= C(15,4)*C(8,4) \n" ); document.write( "= 15!/(4!11!)*8!/(4!4!) \n" ); document.write( "= 1365*70 \n" ); document.write( "= 95550 ways \n" ); document.write( " |