Mtahs : Probability
1. A bag contains 2 yellow, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue? A. 1/2 B. 10/21 C. 8/11 D. 14/21 Answer : Option B 2. Three coins are tossed. What is the probability of getting at most two head? A. 7/8 B. 1/8 C. 1/2 D. 1/7 Answer : A 3. A die is rolled twice. What is the probability of getting a sum equal to 9? A. 2/3 B. 2/9 C. 1/9 D. 1/6 Answer : C 4) 5 coins are tossed together. What is the probability of getting exactly 2 tails? A. 1/2 B. 2/5 C. 4/11 D. 5/16 5). Ramesh and Suresh go for an interview for two vacancies. The probability for the selection of Ramesh is 1/5 and whereas the probability for the selection of Suresh is 1/6. What is the probability that none of them are selected? A) 2/3 B) 1/30 C) 1/3 D) 29/30 Answer : A 6). Ramesh and Suresh go for an interview for two vacancies. The probability for the selection of Ramesh is 1/5 and wherea...