Variance = sigma((value - mean)2) / (# values - 1) Mean = (0+1+1+2)/4 = 1 Variance = ((0-1)2+(1-1)2+(1-1)2+(2-1)2)/(4-1) Variance = (1+0+0+1)/3 Variance = 2/3 Variance ~ 0.667
If you mean points of (-2, 2) and (0, 4) then the slope works out as 1
The arithmetic mean is 2.
I was only able to get 13 but I think there can be more, this is what i got: 0+0+4=4 4+0+0=4 0+4+0=4 0+1+3=4 0+3+1=4 0+2+2=4 1+2+1=4 1+1+2=4 1+3+0=4 2+2+0=4 2+0+2=4 3+1+0=4 3+0+1=4
If you mean points of (-10, 1) and (0, -4) then the slope works out as -1/2
If you mean -4+20+1+4-20-1 = 0 because the numbers cancel themselves out
4-3-0-2-5-1-2
e---------------4-2-0---------------------4-2-0-------------0-0------------------ B-0---------0----------------------0---0-0-----------4---2-4-------0------------- G---1----1-----------------1--3-----------------------------------------1-------- D------2---------------------------------------------------------------------2--- A-------------------------------------------------------------------------------- E-------------------------------------------------------------------------------- e---------------0--4-2-0---------------------4-2-0-------------0-0--------------- B-0---------0----------------------0---0-0-----------4---2-4-------0------------- G---1----1-----------------1--3-----------------------------------------1-------- D------2---------------------------------------------------------------------2--- A-------------------------------------------------------------------------------- E-------------------------------------------------------------------------------- e-4--4-4-5-7-7--5-4-2-4-5-5---5-4-2-0-----------0-------------------------------- B------------------------------------------------4--2-4------------0------------- G------------------------------------------------------------1--3---------------- D-------------------------------------------------------------------------------- A-------------------------------------------------------------------------------- E-------------------------------------------------------------------------------- e---------0-0--0-----------2--5-4------------------0-2-4-5-7--------------------- B-0--0----------4-2--2-2----------5--5--4--0-0----------------------------------- G-------------------------------------------------------------------------------- D-------------------------------------------------------------------------------- A-------------------------------------------------------------------------------- E-------------------------------------------------------------------------------- e-0--2--4---5---2---0------------------------------------------------------------- B--------------------------------------------------------------------------------- G--------------------------------------------------------------------------------- D--------------------------------------------------------------------------------- A--------------------------------------------------------------------------------- E---------------------------------------------------------------------------------
2,2,0,5,1,4,1,3,0,0,1,4,4,0,1,4,3,4,2,1,0
4-3-0-2-5-1-2
12/6 = 2
+4 +3 +3 -4 -3 -2 0 -1 +3 +1+1 0 +1