document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=327354>Question 327354</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 #234502 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=234502\">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" );
document.write( "P(red and red) = P(red)(P(red|red) = (4/8)(3/7) = 12/56 = 6/28<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" );
document.write( "P(green and red) = P(green)*P(red) = (4/8)(4/8) = 1/4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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