Level of Agreement (x)

Propor tion

f

xf

$\left(x-\overline{x}\right)$

${\left(x-\overline{x}\right)}^2$

${\left(x-\overline{x}\right)}^{2}f$

Very Great Extent 5

57.5%

67

335

0.7833

0.6136

41.1112

Great Extent 4

14.2%

32

128

−0.2167

0.0470

1.5040

Moderate Extent 3

2.5%

7

21

−1.2167

1.4804

10.3628

Low Extent 2

13.3%

8

16

−2.2167

4.9138

39.3104

Very Low Extent 1

12.5%

6

6

−3.2167

10.3472

62.0832

Total

100%

120

506

154.3716