document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=723966>Question 723966</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4. A bag of 10 marbles contains 3 red marbles and 7 blue marbles. If two marbles are selected at random, what is the probability that at least one marble is blue?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #443525 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=443525\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A bag of 10 marbles contains 3 red marbles and 7 blue marbles. If two marbles are selected at random, what is the probability that at least one marble is blue?<BR>\n" );
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document.write( "P(at least one blue) = 1 - P(no blue)<BR>\n" );
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document.write( "= 1 - [3C2/10C2]<BR>\n" );
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document.write( "= 1 - 3/45<BR>\n" );
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document.write( "= 1 - (1/15)<BR>\n" );
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document.write( "= 14/15<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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