document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1043317>Question 1043317</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a box contains 18 smartphones. 4 are defective. 3 smartphones randomly selected and tested. what is the probability that first two are defective and the third is working if the first and second are not replaced after being tested? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #658514 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=658514\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> probability first two are defective is (4/18)(3/17)=12/306<BR>\n" );
document.write( "probability third is working is (14/16)<BR>\n" );
document.write( "The total probability is (12/306)(14/16)=0.0343 </SPAN>\n" );
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