document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=747914>Question 747914</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A die is rolled 9 times and the number of times that two shows on the upper face is counted. If this experimentis repeated many times, find the mean for the number of twos. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #455232 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=455232\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let X = number of times that two shows on the upper face <BR>\n" );
document.write( "X ~ Binomial(9, 1/6)<BR>\n" );
document.write( "n = 9 and p = 1/6<BR>\n" );
document.write( "mean, E(X) = np<BR>\n" );
document.write( "           = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%289%29%281%2F6%29 ALIGN=MIDDLE  ALT=\"%289%29%281%2F6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "           = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283%2F2%29 ALIGN=MIDDLE  ALT=\"highlight%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%281.5%29 ALIGN=MIDDLE  ALT=\"highlight%281.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >    </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );