document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=915427>Question 915427</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose the probability that a new born baby is male is 0.5. If four infants are chosen at random, what is the probability that two are male and two are female? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #555584 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=555584\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(male) = .5 ,  n = 4<BR>\n" );
document.write( "P(2M & 2F) = P(x = 2) = normalpdf(4, .5, 2) 0r P =  4C2(.5)^2(.5)2 = .375 </SPAN>\n" );
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