A company selected 3000 households at random and surveyed them to find out a relationship between income level and the number of television sets in a home.
The information so obtained is listed in the following table
Find the probability
(i) of a household earning ₹(10000-14999) and have exactly one television.
(ii) of a household earning ₹ 25000 and more per month and owing 2 televisions.
(iii) of a household not having any television
∵Total number of households selected by the company = 3000
(i) The number of households earning
₹ (10000 -14999) per month and having exactly one television =240
(ii) The number of households earning ₹ 25000 and more per month and owing 2 televisions = 750
(iii) The number of households not having any television = 20 +10 = 30
