document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1191423>Question 1191423</A>: <I><SPAN STYLE=\"word-break: break-all;\"> b)	Given the probability distribution below:<BR>\n" );
document.write( "X                      4                           5		9		  10<BR>\n" );
document.write( "P(X)                 1\2                       1\6                  1/6                   1/6<BR>\n" );
document.write( "Sketch the probability function and find the mean and standard deviation.<BR>\n" );
document.write( "Answer\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #823555 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=823555\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Without the sketch<BR>\n" );
document.write( "mean=4*0.5+(5+9+10)(1/6)<BR>\n" );
document.write( "=2+4<BR>\n" );
document.write( "=6<BR>\n" );
document.write( "Variance=(4-6)^2*0.5+{(5-6)^2+(9-6)^2+(10-6)^2}*(1/6)<BR>\n" );
document.write( "=2+4.33<BR>\n" );
document.write( "sd=sqrt(6.33)=2.52 </SPAN>\n" );
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