document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=367154>Question 367154</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help with this homework problem ASAP!!!<BR>\n" );
document.write( "16% of Americans never have time to relax. You random sample 400 and count the number X that never have enough time to relax.<BR>\n" );
document.write( "1) The mean of X is?<BR>\n" );
document.write( "2)The Standard deviation of X is?<BR>\n" );
document.write( "3) The probability that X is at least 80?\r<BR>\n" );
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document.write( "I answered:<BR>\n" );
document.write( "1) 64<BR>\n" );
document.write( "2) 3.46<BR>\n" );
document.write( "3) about 0.0078\r<BR>\n" );
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document.write( "Is this correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #261788 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=261788\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a binomial distribution.<BR>\n" );
document.write( "1) correct<BR>\n" );
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document.write( "2)standard deviation = sqrt(n*p*(1-p))<BR>\n" );
document.write( "=sqrt(400*.16*.84)<BR>\n" );
document.write( "=7.33<BR>\n" );
document.write( ".<BR>\n" );
document.write( "3).0194 Binomial distribution probability calculator. http://stattrek.com/Tables/Binomial.aspx<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );