document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=632677>Question 632677</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given a binomial distribution with n = 21 and p = 0.77, would the normal distribution provide a reasonable approximation? \r<BR>\n" );
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document.write( "Hi, I feel like I've missed a class. Everything I'm reading says that to do this I need np and n(1-p) = nq and I have no idea what this means!! can someone help please? I don't want the answer I want to know how to get the answer. Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #398407 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=398407\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> np = 21*0.77 = 16.17\r<BR>\n" );
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document.write( "So np = 16.17\r<BR>\n" );
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document.write( "n(1-p) = 21*(1-0.77) = 4.83\r<BR>\n" );
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document.write( "So n(1-p) = 4.83 or nq = 4.83 since q = (1-p)\r<BR>\n" );
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document.write( "Since nq = 4.83 is NOT greater than 5, this means that the normal distribution would NOT provide a reasonable approximation\r<BR>\n" );
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document.write( "It would only provide a reasonable approximation if BOTH np AND nq are greater than 5.\r<BR>\n" );
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