document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=879596>Question 879596</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 70% of disk drives made from Com drive function properly.  If we have a collection of 5 disk drives what is the probability that:  (worth 10 points, 5 points apiece)\r<BR>\n" );
document.write( "\n" );
document.write( "a)	At least one disk drive doesn’t function?<BR>\n" );
document.write( "b)	At least one disk drive is functioning<BR>\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 #530925 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=530925\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(good) = .70, p(def) = .30, n = 5<BR>\n" );
document.write( "a)P(at least one def) = 1 - P(all good) = 1 - (.80)^5<BR>\n" );
document.write( "b) P(at least one good) = 1 - P(all bad) = 1 - (.30)^5 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );