  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: sigma   start over

5 items are filed under this topic.    Page1/1            2+6+12+20+30+42 2009-04-24 From fredy:what is the sigma notation for the series 2+6+12+20+30+42?Answered by Stephen La Rocque.     Sigma notation 2008-01-06 From jamelia:what is this word problem in sigma style i am so lost at this point my first time ever attempting this subject 1+2+3+4+5Answered by Penny Nom.     Standard Deviation 2007-06-13 From Adrian:If you are told that the mean salary of a certain group of workers is \$30,000 with a standard deviation of \$4000, what proportion of workers earn over \$38,000? What proportion of workers earn less than \$18,000? Assume the distribution of wages is normal.Answered by Stephen La Rocque.     Sigma notation 2006-12-05 From Marie:how do i get this in sigma notation...i only need an explanation 1^2 + (2+3)^2 + (4+5+6)^2 + (7+8+9+10)^2....Answered by Penny Nom.     Sigma 2001-03-31 From A student:What does the Sigma symbol mean in mathematics?Answered by Penny Nom.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français