document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=453825>Question 453825</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The phone system within a school assigns 4-digit phone numbers.<BR>\n" );
document.write( "If the phone numbers are randomly assigned, what is the probability that you will be assigned a phone number that ends in 0, if the digits may repeat. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311730 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=311730\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The phone system within a school assigns 4-digit phone numbers.<BR>\n" );
document.write( "If the phone numbers are randomly assigned, what is the probability that you will be assigned a phone number that ends in 0, if the digits may repeat.<BR>\n" );
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document.write( "Ways to pick each of the first three digits: 10<BR>\n" );
document.write( "Ways to pick the 4 digit: 1<BR>\n" );
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document.write( "# of phone numbers ending in zero: 10^3*1 = 1000<BR>\n" );
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document.write( "Total # of possible phone numbers: 10^4<BR>\n" );
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document.write( "P(phone number ending in 0) = 1000/10,000 = 1/10<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H </SPAN>\n" );
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