document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=325261>Question 325261</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are four green blocks and four red blocks in a bag.\r<BR>\n" );
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document.write( "a What is the probability of selecting a red block, keeping it, then selecting<BR>\n" );
document.write( "another red block?\r<BR>\n" );
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document.write( "b  What is the probability of selecting a green block, replacing it, then selecting a red block? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #232909 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=232909\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are four green blocks and four red blocks in a bag. <BR>\n" );
document.write( "a What is the probability of selecting a red block, keeping it, then selecting<BR>\n" );
document.write( "another red block?<BR>\n" );
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document.write( "1st red: 4/8<BR>\n" );
document.write( "2nd red: 3/7<BR>\n" );
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document.write( "P(red/red) = (4/8)*(3/7) = 3/14<BR>\n" );
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document.write( "b What is the probability of selecting a green block, replacing it, then selecting a red block?<BR>\n" );
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document.write( "P(green/red) = (1/2)(1/2) = 1/4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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