document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=431823>Question 431823</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1) In how many ways can a class of 30 students choose 4 of their representatives?\r<BR>\n" );
document.write( "\n" );
document.write( "2) How many elements in the sample space of drawing a card out of a standard deck of 52, tossing a coin, and tossing a 12-face die?\r<BR>\n" );
document.write( "\n" );
document.write( "3) You are drawing two cards out of a standard deck of 52 cards, without replacing the first one back, what is the probability of you drawing a face then an eight card?\r<BR>\n" );
document.write( "\n" );
document.write( "I have a question, how do you know when to use Permutations or Combinations? Both seem similar so it's hard to figure out which equation to use :[ <BR>\n" );
document.write( "Thanks so much ! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #299571 by </B><A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><B>sudhanshu_kmr(1152)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><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/cgi-bin/show-face.mpl?user=sudhanshu_kmr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=299571\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "1) no. of ways = 30C4 = 27405\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "2) number of sample space = 52 * 2 * 12 = 1248\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "3) probability = (12/52)* (4/51) = 4/221\r<BR>\n" );
document.write( "\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );