document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=919769>Question 919769</A>: <I><SPAN STYLE=\"word-break: break-all;\"> past experience suggest that 43% of students pass a certain exam. If a class contains 150 students, what is probability that 50 or fewer students will pass?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557954 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=557954\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sample p = 50/150 = .33<BR>\n" );
document.write( "z = (.33 - .43) /sqrt(.43*.57/150) = -.10/.04 = -2.4739<BR>\n" );
document.write( "P(x &#8804; 50) = P( z <  -2.4739) = normalcdf(-100, -2.4739) = .0067  0r .67% </SPAN>\n" );
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