Question

3. the monthly salary distribution of 250 families in a certain locality is given:

Salary
More than 0
More than 500
More than 1000
More than 1500
More than 2000
More than 2500
More than 3000
More than 3500

No of Families
250
200
120
80
55
30
15
5

Find out (i) limits of income of middle 50% of families.
(ii) if income tax is to be levied on families, whose income exceeds Rs 1800 p.m. calculate percentage of families, which will pay income tax.
(iii) the highest income of lowest 40% of the families.

Answer 1

haiin! confusing question