An example of grouped data

Table 1: Size distribution of consumption expenditure in rural India, 1983

a. Monthly per capita expenditure in Rs	b. Proportion of persons (%)	c. Mean monthly per capita expenditure in Rs	d. Cumulative proportion of population (\(p\))	e. Cumulative proportion of consumption expenditure (\(L\))
0 – 30	0.92	24.84	0.0092	0.00208
30 – 40	2.47	35.80	0.0339	0.01013
40 – 50	5.11	45.36	0.085	0.03122
50 – 60	7.90	55.10	0.164	0.07083
60 – 70	9.69	64.92	0.2609	0.12808
70 – 85	15.24	77.08	0.4133	0.23498
85 – 100	13.64	91.75	0.5497	0.34887
100 – 125	16.99	110.64	0.7196	0.51994
125 – 150	10.00	134.90	0.8196	0.6427
150 – 200	9.78	167.76	0.9174	0.79201
200 – 250	3.96	215.48	0.957	0.86966
250 – 300	1.81	261.66	0.9751	0.91277
300 and above	2.49	384.97	1	1
All expenditure classes	100.00	109.90

Source: Datt (1998)

Reference

Datt, Gaurav. 1998. “Computational Tools for Poverty Measurement and Analysis.” http://ebrary.ifpri.org/utils/getfile/collection/p15738coll2/id/125673/filename/125704.pdf.