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

32.5%

39

195

1.8583

3.4533

134.6787

Great Extent 4

9.2%

11

44

0.8583

0.7367

8.1037

Moderate Exte 3

1.7%

20

60

−0.1417

0.0201

0.4020

Low Extent 2

23.3%

28

56

−1.1417

1.3035

36.498

Very Low Extent 1

18.3%

22

22

−2.1417

4.5869

100.9118

Total

100%

120

377

280.5942