document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=125894>Question 125894</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a shipment of 15 television sets contains four defective ones. in how many ways can one select 5 of these for inspection so that:\r<BR>\n" );
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document.write( "a. none of the defective television sets are included<BR>\n" );
document.write( "b. both of the defective television sets are included<BR>\n" );
document.write( "c. only one of the defective television sets are included<BR>\n" );
document.write( "d. either two of the defective television sets or three of the non defective sets are included </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #92283 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=92283\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a shipment of 15 television sets contains four defective ones. in how many ways can one select 5 of these for inspection so that:\r<BR>\n" );
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document.write( "a. none of the defective television sets are included<BR>\n" );
document.write( "11C5 = [11*10*9*8*7]/[1*2*3*4*5] = 462<BR>\n" );
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document.write( "b. both of the defective television sets are included<BR>\n" );
document.write( "Comment: There are four defective; you are selecting 5 TV's; what<BR>\n" );
document.write( "is meant by \"both\"?<BR>\n" );
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document.write( "c. only one of the defective television sets are included<BR>\n" );
document.write( "Pick a defective: 4 ways<BR>\n" );
document.write( "Pick 4 others: 11C4 = 330<BR>\n" );
document.write( "Total # of ways: 4*330= 1320<BR>\n" );
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document.write( "d. either two of the defective television sets or three of the non defective sets are included<BR>\n" );
document.write( "Those conditions are really the same condition when you are selecting 5.<BR>\n" );
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document.write( "4C2*11C3 = 990<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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