Question

Given below are the daily income of ten families. Evaluate the average daily income.

S. No.	1	2	3	4	5	6	7	8	9	10
Daily Income	100	120	80	85	95	130	200	250	225	275

Answer 1

Serial No.	Daily Income (in Rs) (X)
1	80
2	100
3	90
4	80
5	90
6	110
7	190
8	230
9	210
10	250
N=10	∑X= 1430

\(\overline X=\frac{\sum X}N\)

\(\overline X=\frac{80+100+90+80+90+110+190+230+210+255}{10}\)

\(\overline X=\frac{1430}{10}\)

\(\overline X=143\)