document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=871199>Question 871199</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 30 people in a room. What is the probability that at least two of these people have the same birthday - that is, have their birthdays on the same day and month? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #525369 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=525369\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(same birthday) = 1/365,  n = 30<BR>\n" );
document.write( "P(x &#8805; 2) = 1 - binomcdf(30, .0027, 1)= .003 </SPAN>\n" );
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