document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1156069>Question 1156069</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two marbles are selected at randomly from a box containing 5red,7white and 8blue marbles one after the other without replacement. Draw a probability tree diagram and find the probability that:<BR>\n" );
document.write( "1.both are red<BR>\n" );
document.write( "2.one is white and the other is blue<BR>\n" );
document.write( "3.both are the same color </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #778759 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=778759\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> both are red, the red tree with (5/20) for the first and (4/19) for the second or 1/18 altogether<BR>\n" );
document.write( "one is white and the other is blue. <BR>\n" );
document.write( "WB is 7/20*8/19<BR>\n" );
document.write( "BW is 8/20*7/19<BR>\n" );
document.write( "that total is 112/380 with probability 0.2947<BR>\n" );
document.write( "same color is RR or 1/18 or 0.0556<BR>\n" );
document.write( "WW which is (7/20),(6/19)=42/380 or 21/190 or 0.1105<BR>\n" );
document.write( "BB which is (8/20)(7/19)=56/380=14/95 or 0.1474 </SPAN>\n" );
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