document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=255643>Question 255643</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Compute the variance of the probability distribution in the table below.<BR>\n" );
document.write( "Outcome /  Probability<BR>\n" );
document.write( "60      /         0.2<BR>\n" );
document.write( "61      /         0.1<BR>\n" );
document.write( "62      /         0.2<BR>\n" );
document.write( "63       /        0.5\r<BR>\n" );
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document.write( "This is what I did/ got for an answer:<BR>\n" );
document.write( "The mean is 62.. so<BR>\n" );
document.write( "Var(x)= (60-62)^2(.2)+(61-62)^2(.1)+(62-62)^2(.2)+(63-62)^2(.5)<BR>\n" );
document.write( "=-0.4\r<BR>\n" );
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document.write( "Am I right? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #187859 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=187859\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The method is correct but I get 1.4 when I add the terms.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );