document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=724254>Question 724254</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a box contains 10 left handed and 20 right handed screws what is the probability of obtaining at least one right handed screw in drawing 2 screws with replacement? Will the probability in the answer in the first question increase or decrease if we draw without replacement.? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #443678 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=443678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a box contains 10 left handed and 20 right handed screws what is the probability of obtaining at least one right handed screw in drawing 2 screws with replacement? <BR>\n" );
document.write( "P(at least 1 right) = 1 - P(2 left) = 1 - (1/3)^2 = 8/9<BR>\n" );
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document.write( "Will the probability in the answer in the first question increase or decrease if we draw without replacement.<BR>\n" );
document.write( "Ans: increase<BR>\n" );
document.write( "1 - (10/30)(9/29) = 0.8966<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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