Level of Agreement (x)

Proportion

f

xf

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

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

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

Very Great Extent 5

29.2%

35

175

1.6167

2.6137

91.4795

Great Extent 4

27.5%

33

132

0.6167

0.3803

12.5499

Moderate Extent 3

12.5%

15

45

−0.3833

0.1469

2.2035

Low Exten 2

14.2%

17

34

−1.3833

1.9135

32.5295

Very Low Extent 1

16.7%

20

20

−2.3833

5.6801

113.602

Total

100%

120

406

252.3644