document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=828287>Question 828287</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.  find the probability that the machine works?<BR>\n" );
document.write( "2.  Find the probability that the machine does not work?\r<BR>\n" );
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document.write( " A machine part is made up of four independent part (A,B,C,D). To operate the machine, each part must work.  The probabilities of the parts working are<BR>\n" );
document.write( "P(A) = .9<BR>\n" );
document.write( "P(B) = .7<BR>\n" );
document.write( "P(C) = .8<BR>\n" );
document.write( "P(D) = .9\r<BR>\n" );
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document.write( "my answer for 2 is .9+.7+.8+.9 = 3.3/4 so the answer is 84.5%<BR>\n" );
document.write( "my answer for 3 is .1+.3+.2+.7 = .7/4 so the answer is 17.5% </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #499202 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=499202\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. find the probability that the machine works?<BR>\n" );
document.write( "2. Find the probability that the machine does not work? <BR>\n" );
document.write( "A machine part is made up of four independent part (A,B,C,D). To operate the machine, each part must work. The probabilities of the parts working are<BR>\n" );
document.write( "P(A) = .9<BR>\n" );
document.write( "P(B) = .7<BR>\n" );
document.write( "P(C) = .8<BR>\n" );
document.write( "P(D) = .9<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Answers:<BR>\n" );
document.write( "1. P(it works) = 0.9*0.7*0.8*0.9 = 0.4536<BR>\n" );
document.write( "2. P(does not work) = 1 - 0.4536 = 0.5464<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " <BR>\n" );
document.write( " </SPAN>\n" );
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