document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=374598>Question 374598</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if 4Cr represents the number of combinations of n items taken r at a time, what is the value of sigma[1,3,[4Cr]? answers are: (1)24, (2)6, (3)14, (4)4.<BR>\n" );
document.write( "where r=1\r<BR>\n" );
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document.write( "thank you in advance for your help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #266459 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=266459\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sum%284Cr%2Cr=1%2C3%29=4C1+%2B+4C2+%2B+4C3+=+4%2B6%2B4+=+14 ALIGN=MIDDLE  ALT=\"sum%284Cr%2Cr=1%2C3%29=4C1+%2B+4C2+%2B+4C3+=+4%2B6%2B4+=+14\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Note: Check out <a  rel=nofollow HREF=\"http://www.algebra.com/algebra/homework/Probability-and-statistics/NPR-NCR.solver\">this solver</a> for more help with combinations.\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sum%284Cr%2Cr=1%2C3%29+=+14 ALIGN=MIDDLE  ALT=\"sum%284Cr%2Cr=1%2C3%29+=+14\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which means that the answer is choice (3) </SPAN>\n" );
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