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Question 5 (iv)
An organization selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below:
Monthly income(in Rs)Vehicles per family012Above 2Less than 70001016025070001000003052721000013000153529113000160002469592516000 or more15798288
Suppose a family is chosen, find the probability that the family chosen is
(iv) earning Rs 13000-16000 per month and owning more than 2 vehicles.


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Solution

Number of total families surveyed = 2400
(iv) Number of families earning Rs 13000−16000 per month and owning more than 2 vehicles =25
Hence, required probability, P=252400=196


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