Question

GENERAL HAPPINESS
		Frequency	Percent	Valid Percent	Cumulative Percent
Valid	VERY HAPPY	451	30.1	30.1	30.1
	PRETTY HAPPY	854	56.9	57.0	87.2
	NOT TOO HAPPY	192	12.8	12.8	100.0
	Total	1497	99.8	100.0
Missing	DK	2	.1
	NA	1	.1
	Total	3	.2
Total		1500	100.0

What is the IQV

Answer 1

IQV : Index of qualitative variation

The formula to compute index of qualitative variation is

Where n = number of categories

p_i: Proportion of sample data lies in i^th category.

pi = ( Frequency / Total frequency) *100

Category ( Happiness)	Frequency	Valid Proportion (Pi)	(pi^2
Very Happy	451	30.13	907.631
Pretty Happy	854	57.05	3254.409
Not to Happy	192	12.83	164.497
Total	1497	100.000	4326.5377

Here n = 3

Index of qualitative variation ( IQV) is given by

IQV = 85.10%