Q16Multiple choiceExercise 14.3
A company selected 4000 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: Monthly income Number of Televisions/household (in Rs) 0 1 2 Above 2 < 10000 20 80 10 0 10000 - 14999 10 240 60 0 15000 - 19999 0 380 120 30 20000 - 24999 0 520 370 80 25000 and above 0 1100 760 220 Find the probability:
- (i)of a household earning Rs 10000 – Rs 14999 per year and having exactly one television.
- (ii)of a household earning Rs 25000 and more per year and owning 2 televisions.
- (iii)of a household not having any television.