document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=736025>Question 736025</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The probability of a radar station detecting an enemy plane is 0.65 and the probability of not detecting an<BR>\n" );
document.write( "enemy plane is 0.35. If 20 stations are in use, what is the expected number of stations that will detect an<BR>\n" );
document.write( "enemy plane? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #449633 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=449633\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The probability of a radar station detecting an enemy plane is 0.65 and the probability of not detecting an<BR>\n" );
document.write( "enemy plane is 0.35. If 20 stations are in use, what is the expected number of stations that will detect an<BR>\n" );
document.write( "enemy plane?<BR>\n" );
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document.write( "Binomial Problem:<BR>\n" );
document.write( "E(x) = mean = np<BR>\n" );
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document.write( "Ans: u = np = 20*0.65 = 13<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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