document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1169655>Question 1169655</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 67% of children in a school do not have cavities. Let x be the number of children in a random sample of 70 children selected from this school who do not have cavities. The mean and standard deviation of the probability distribution of x, rounded to two decimal places, are?\r<BR>\n" );
document.write( "\n" );
document.write( "Just looking for clarification,<BR>\n" );
document.write( "Mean is 67<BR>\n" );
document.write( "The standard deviation is 8.1853\r<BR>\n" );
document.write( "\n" );
document.write( "If not I'm very confused then :( </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #794441 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(53763)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=794441\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The formulation of the problem is incorrect grammatically, &nbsp;logically and mathematically.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "As formulated, &nbsp;it is &nbsp;AMBIGOUS, &nbsp;which is &nbsp;PROHIBITED &nbsp;in &nbsp;Math problems.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "/\/\/\/\/\/\/\/\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "After reading your post, &nbsp;it is &nbsp;UNCLEAR &nbsp;to me,\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "    who do not have cavities: these 70 children or that x children ?\r\n" );
document.write( "</PRE>\r<BR>\n" );
document.write( "\n" );
document.write( "You may answer me : &nbsp;&nbsp;guess it on your own.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "But I don't want to guess: &nbsp;It is &nbsp;Math, &nbsp;and &nbsp;I &nbsp;want to &nbsp;<U>KNOW</U> &nbsp;/ (to see) &nbsp;it from the text - not from the context.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );