document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1051994>Question 1051994</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Three computer viruses arrived as an e-mail attachment. Virus A damages the system<BR>\n" );
document.write( "with probability 0.4. Independently of it, virus B damages the system with probability 0.5.<BR>\n" );
document.write( "Independently of A and B, virus C damages the system with probability 0.2. What is the<BR>\n" );
document.write( "probability that the system gets damaged? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #667428 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=667428\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Three computer viruses arrived as an e-mail attachment. Virus A damages the system<BR>\n" );
document.write( "with probability 0.4. Independently of it, virus B damages the system with probability 0.5.<BR>\n" );
document.write( "Independently of A and B, virus C damages the system with probability 0.2. What is the<BR>\n" );
document.write( "probability that the system gets damaged?<BR>\n" );
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document.write( "1 - (1-0.4)*(1-0.5)*(1-0.2) = 1 - 0.6*0.5*0.8 = 1 - 0.24 = 0.76.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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