document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=893707>Question 893707</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose you know 2% of all switches are defective. If  two switches are used in a device:<BR>\n" );
document.write( "A. What is probability that both switches are good?<BR>\n" );
document.write( "B. What is the probability that exactly one switch is good?<BR>\n" );
document.write( "C. What Is probability that at least one switch is good?<BR>\n" );
document.write( "Please provide steps to get the answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #541569 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=541569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28G%2CG%29=P%28G%29P%28G%29=0.98%280.98%29=0.9604 ALIGN=MIDDLE  ALT=\"P%28G%2CG%29=P%28G%29P%28G%29=0.98%280.98%29=0.9604\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "B) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=P%28G%29P%28B%29%2BP%28B%29P%28G%29=%280.98%29%280.02%29%2B%280.02%29%280.98%29=0.0392 ALIGN=MIDDLE  ALT=\"P=P%28G%29P%28B%29%2BP%28B%29P%28G%29=%280.98%29%280.02%29%2B%280.02%29%280.98%29=0.0392\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "C) This is the complement to both switches are bad.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%28B%2CB%29=%280.02%29%280.02%29=0.0004 ALIGN=MIDDLE  ALT=\"P%28B%2CB%29=%280.02%29%280.02%29=0.0004\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So then,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=1-0.0004=0.9996 ALIGN=MIDDLE  ALT=\"P=1-0.0004=0.9996\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You could have also added the results from A and B.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );