Xavier Aptitude Test 2011 Paper

(a) Probability that there is no major crime innorthern neighbourhood = (1 – 0.418) = 0 .582Similarly, no minor crime in northern neighbourhood.= (1 – 0.612)= 0.3880For southern neighbourhood.Probability for no major crime = (1 – 0.355) = 0.645Probability for no minor crime = (1 – .520) = 0.480 ∴ Probability that there is no crime at all= 0.582 × 0.388 ×0.645 × 0.480 = 0.699.