document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316280>Question 316280</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Not to sure how to solve this one, any ideas?\r<BR>\n" );
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document.write( "A keyword search program lists the files that contain a given keyword. If it runs through 200 files, and each file contains the keyword with probability 0.25, independently of other files, compute the probability that least 50 files will be listed.<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 #226577 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=226577\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A keyword search program lists the files that contain a given keyword. If it runs through 200 files, and each file contains the keyword with probability 0.25, independently of other files, compute the probability that least 50 files will be listed.<BR>\n" );
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document.write( "Binomial Problem with n = 200, p = 0.25<BR>\n" );
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document.write( "P(50<= x <= 200) = 1 - binomcdf(200,0.25,49) <BR>\n" );
document.write( "= 0.5271<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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