Number of total families surveyed = 10 + 160 + 25 + 0 + 0 + 305 + 27 + 2 + 1 +
535 + 29 + 1 + 2 + 469 + 59 + 25 + 1 + 579 + 82 + 88 = 2400
(i) Number of families earning Rs 10000 − 13000 per month and owning exactly 2 vehicles = 29
Hence, required probability, P = 29/2400
(ii) Number of families earning Rs 16000 or more per month and owning exactly 1 vehicle = 579
Hence, required probability, P = 579/2400
(iii) Number of families earning less than Rs 7000 per month and does not own any vehicle = 10
Hence, required probability, P = 10/2400 = 1/240
(iv) Number of families earning Rs 13000 − 16000 per month and owning more than 2 vehicles = 25
Hence, required probability, P = 25/2400 = 1/96
(v) Number of families owning not more than 1 vehicle = 10 + 160 + 0 + 305 + 1 + 535 + 2 + 469 + 1 + 579 = 2062
Hence, required probability, P = 2062/2400 = 1031/1200