Level of Agreement (x)

Proportion

f

f

xf

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

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

Very Great Extent 5

75.8%

91

455

0.4083

0.1667

15.1697

Great Extent 4

16.7%

20

80

−0.5917

0.3501

7.002

Moderate Extent 3

1.7%

2

6

−1.5917

2.5335

5.067

Low Extent 2

2.5%

3

6

−2.5917

6.7169

20.1507

Very Low Extent 1

3.3%

4

4

−3.5917

12.9003

51.6012

Total

100%

120

551

98.9906