document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=728559>Question 728559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An apartment complex has two activating devices in each fire detector. One is smoke-activated and has a probability of .98 of sounding an alarm when it should. The second has a heat sensitive activator and has a probability of .95 of operating when it should. Each activator operates independently on the other. Presume a fire starts near a detector. What is the probability that both will work properly? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #445515 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=445515\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An apartment complex has two activating devices in each fire detector. One is smoke-activated and has a probability of .98 of sounding an alarm when it should. The second has a heat sensitive activator and has a probability of .95 of operating when it should. Each activator operates independently on the other. Presume a fire starts near a detector. What is the probability that both will work properly?<BR>\n" );
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document.write( "Their operation is an independent event.<BR>\n" );
document.write( "Ans: 0.98*0.95 = 0.931<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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