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

72.5%

87

435

0.4667

0.2178

18.9486

Great Extent 4

19.2%

23

92

−0.5333

0.2844

6.5412

Moderate Extent 3

1.7%

2

6

−1.5333

2.3510

4.702

Low Extent 2

2.5%

3

6

−2.4333

5.9209

17.7627

Very Low Extent 1

4.2%

5

5

−3.5333

12.4842

62.421

Total

100%

120

544

110.3755