x y dx dx^2 dy dy^2 dxdy
### ### ### 7.11 -31.11
21 4
### ### ### 13.44 -24.44
16 3
### ### ### 0.44 -1.78
12 6
### ### ### 1.78 -7.11
4 8
### ### ### 5.44 -17.11
2 9
### ### ### 11.11 -27.78
1 10
9.33 6.67 0 56.56 0 6.56 -18.22
### 2.56 -0.95
Std. Deviations

X Y product
- - +
- + -
- + -
- + -
- + -
0.77

1 6 -5 25
Tarachand
Jitendra 3 5 -2 4
2 3 -1 1
Arihant
Mahavir 6 1 5 25
Ram 4 2 2 4
Mukesh 5 4 1 1
1.71