document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119325>Question 119325</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A test shows that 10 out of 100 gadgets are defective. In a random sample of two gadgets are chosen, the probability that both are defective is?\r<BR>\n" );
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document.write( "a. 1/1000<BR>\n" );
document.write( "b. 1/110<BR>\n" );
document.write( "c. 1/11<BR>\n" );
document.write( "d. 1/10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87497 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=87497\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A test shows that 10 out of 100 gadgets are defective. In a random sample of two gadgets are chosen, the probability that both are defective is?<BR>\n" );
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document.write( "# of ways to pick 2 out of the 10 = 10C2 = [10*9]/[1*2] = 45<BR>\n" );
document.write( "# of ways to pick 2 out of the 100=100C2 = [100*99]/[1*2] = 4950<BR>\n" );
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document.write( "P(pick 2 defective) = 45/4950 = 0.0091 = 1/110<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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