document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187394>Question 187394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the probability that if you have 8 kids, that at least 2 of them will be males? (Assume 7 births and P(male)=P(female)=.5 and births are independent events.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140464 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=140464\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the probability that if you have 8 kids, that at least 2 of them will be males? (Assume 7 births and P(male)=P(female)=.5 and births are independent events.)<BR>\n" );
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document.write( "It's a binomial problem with n = 8,p = 1/2 ;  2 <= x <= 8\r<BR>\n" );
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document.write( "P(2 <= x <= 8) = 1 - binomcdf(8,0.5,1) = 0.9648<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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