document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=137562>Question 137562</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the mean and standard deviation of the following discrete random variable.<BR>\n" );
document.write( " Number of siblings: X| 1 2 3 4 5 <BR>\n" );
document.write( " Probability P(X=x):  |0.200| 0.425| 0.275|0.075|0.025<BR>\n" );
document.write( "  1 goes on top 0.200 2 goes on top 0.425 etc.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100746 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=100746\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the mean and standard deviation of the following discrete random variable.<BR>\n" );
document.write( " Number of siblings: X| 1 2 3 4 5 <BR>\n" );
document.write( " Probability P(X=x):  |0.200| 0.425| 0.275|0.075|0.025<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "mean = 2.3<BR>\n" );
document.write( "stdev = 0.953939...<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );