5. What is the probability of getting a number greater than 3, in a throw of
an unbiased dice having 6 faces?
6. What is the probability that the sum of the numbers is not less than 11,
when two dice are thrown simultaneously?
7. If the probability of a student A being in a particular team is ¼ and the probability
of student B being in the same team is 1/3, then what is the probability that both
the students are in the same particular team?
8. If the probability of a student A being in a particular team is ¼ and the probability of student B being in the
same team is 1/3, then what is the probability that either of the two students are in the particular team?
9. A fair die is thrown three times and the outcome was repeatedly six. If the die is
thrown again, what is the probability of getting the six?
10. Two Integers are picked at random from the first 15 positive integers without replacement. What is the
probability that the sum of two numbers is 20?
NET-JUNE 2013
11. During a summer vacation , 20 friends from a hostel, each wrote a letter to each of all others. The total no. of
letters written was? NET 2013 JUNE
12. A point is chosen at random from a circular disk shown in the figure. What is the probability that the
point lies on the sector OAB?