document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=60877>Question 60877</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0023557222/algebrahomeworkh>introduction to mathmatical statistics</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> can u please help me in this <BR>\n" );
document.write( "find the mean and variance if they exist , of each of the following distribution \r<BR>\n" );
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document.write( "f(x) = 3 factorial/xfactorial(3-x)factorial  * (1/2)^3  , x  = 0,1,2,3  zero else where <BR>\n" );
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