document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=390780>Question 390780</A>: <I><SPAN STYLE=\"word-break: break-all;\"> : A school has two backup generators having probabilities of 0.9 and 0.95, respectively , of operating in case of power outage. find the probability that at least one backup generator operates during a power outage <BR>\n" );
document.write( "answer:<BR>\n" );
document.write( "F 0.855<BR>\n" );
document.write( "G 0.89<BR>\n" );
document.write( "H 0.95<BR>\n" );
document.write( "J 0.995\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #277114 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=277114\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A school has two backup generators having probabilities of 0.9 and 0.95, respectively , of operating in case of power outage. find the probability that at least one backup generator operates during a power outage<BR>\n" );
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document.write( "P(both fail) = 0.1*0.05 = 0.005<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "P(at least one operates) = 1- P(both fail) = 1-0.005 = 0.995<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================<BR>\n" );
document.write( "F 0.855<BR>\n" );
document.write( "G 0.89<BR>\n" );
document.write( "H 0.95<BR>\n" );
document.write( "J 0.995 \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );