document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=859865>Question 859865</A>: <I><SPAN STYLE=\"word-break: break-all;\"> whats probability of picking an even numbered card if you pick a card 20 times?\r<BR>\n" );
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document.write( "Is the answer 32/52 ^20 ? Is it safe to assume the card is put back each time?\r<BR>\n" );
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document.write( "If its not put back, would it be 32/52 * 31/51 * 30/50 ....alll the way down to 22/52 ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #518029 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=518029\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> whats probability of picking an even numbered card if you pick a card 20 times?<BR>\n" );
document.write( "There are 4*5 = 20 even-numbered cards.<BR>\n" );
document.write( "If you mean \"picking at least one even-numbered card\" the answer is::<BR>\n" );
document.write( "P(at least one even) = 1 - P(no even in 20 draws) = 1-(32/52)^20 = 0.9999..<BR>\n" );
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document.write( "If you mean \"pick exactly one even card\" the answer is::<BR>\n" );
document.write( "P(x = 1) = 20C1(20/52)*(32/52)^19 = 0.000758<BR>\n" );
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document.write( "If its not put back, would it be 32/52 * 31/51 * 30/50 ....all the way down to 22/52 ?<BR>\n" );
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document.write( "Yes<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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