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

44.2%

53

265

1.35

1.8225

96.5925

Great Extent 4

17.5%

21

82

0.35

0.1225

2.5725

Moderate Extent 3

15.8%

19

57

−0.65

0.4225

8.0275

Low Extent 2

5.8%

7

14

−1.65

2.7225

2.7225

Very Low Extent 1

16.7%

20

20

−2.65

7.0225

140.45

Total

100%

120

438

250.365