Total Questions :11

Total numbers of families = 2400

(i) Numbers of families earning Rs10000 –13000 per month and owning exactly 2 vehicles = 29
Required probability = 29/2400

(ii) Number of families earning Rs16000 or more per month and owning exactly 1 vehicle = 579
Required probability = 579/2400

(iii) Number of families earning less than Rs7000 per month and does not own any vehicle = 10 Required probability = 10/2400 = 1/240


(iv) Number of families earning Rs13000-16000 per month and owning more than 2 vehicles = 25
Required probability = 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

Required probability = 2062/2400 = 1031/1200