document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=588101>Question 588101</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let x determine a random variable, and use your knowledge of probability to prepare a probability distribution: 3 cards are drawn from a deck. The number of aces is counted. <BR>\n" );
document.write( "The answer to this is: <BR>\n" );
document.write( "number of aces: 0,1,2,3,4<BR>\n" );
document.write( "Probability: 0.7826, 0.2042, 0.0130, 0.0002<BR>\n" );
document.write( "I don't understand how they arrived at this answer. Please explain.\r<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 #374382 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=374382\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x determine a random variable, and use your knowledge of probability to prepare a probability distribution: 3 cards are drawn from a deck. The number of aces is counted. <BR>\n" );
document.write( "The answer to this is: <BR>\n" );
document.write( "number of aces: 0,1,2,3,4<BR>\n" );
document.write( "Probability: 0.7826, 0.2042, 0.0130, 0.0002<BR>\n" );
document.write( "----<BR>\n" );
document.write( "There are 4 aces and 48 non-ace cards.<BR>\n" );
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document.write( "P(x = 0) = 48C3/52C3 = 0.7826<BR>\n" );
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document.write( "P(x = 1) = [4C1*48C2]/52C3 = 4512/22100 = 0.2042<BR>\n" );
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document.write( "P(x = 2) = [4C2*48C1]/52C3<BR>\n" );
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document.write( "P(x = 3) = [4C3]/52C3<BR>\n" );
document.write( "===========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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