Probability Problems

Dear Reader, Below you will find important formulas of probability problems. Following that you will find solved questions. These questions will help you in preparation for all bank exams including IBPS, SBI, RRB and other banks. Definition for...
Question 1 Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is odd? a) 1/3 b) 2/3 c) 1/2 d) 3/4 Answer:c) 1/2 Solution: In a simultaneous throw of two dice, we have n(s) = 6 x 6 = 36 Let E = event of...
Question 1 In a class, there are 12 boys and 16 girls. One of them is called out by an enroll number, what is the probability that the one called is a girl? a) 1/4 b) 2/5 c) 5/12 d) 4/7 Answer : d) 4/7. Solution : Let S be the sample space. Total...
Question 1 In a school, 45% of the students play football, 30% play volleyball and 15% both. If a student is selected at random, then the probability that he plays football or volleyball is: a) 2/7 b) 3/5 c) 1/4 d) 4/5 Answer : b) 3/5 Solution :...
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