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

74.2%

89

445

0.4167

0.1736

15.4504

Great Extent 4

19.2%

23

92

−0.5833

0.3402

7.8246

Moderate Extent 3

0.8%

1

3

−1.5833

2.5068

2.5068

Low Extent 2

2.5%

3

6

−2.5833

6.6734

20.0202

Very Low Extent 1

3.3%

4

4

−3.5833

12.8400

51.36

Total

100%

120

550

97.162