CHAPTER-2 Basic Counting Principles QUESTION:2 (a). If (n + 6)! = 18 (n + 5)! , then find the value of n. (b). Find total no. of permutations of the letters of the word MOON. (c). If nc1 = nc 3 find the value of nc 2' (d). From a class of 14 students, 5 are to be chosen for a competition. In how many ways can this be done. CHAPTER 3 Probability QUESTION:3 (a). A coin is tossed two times. Find the probability of getting Two head or one tail. (b). A dice is throw two times. Find the probability of getting sum 9. (c). A bag contains 6 red and 10 green balls, 5 balls is drawn at random. What is the probability that 3, balls are green . (d). If A and B are two events such that p(A ) = 0.5, p( B) = 0.6, p(A U B) = 0.8 Find p(A/B) and ( B/A) (e). Find expected value and variance 2 3 X 0 P(x) I W CHAPTER 4 Graph Theory QUESTION: 4 (a). Find Vertices, Edges, Oder, Size , of the following graph eg S M ez es ex eb ex Q ez R T (b). Find Self Loop and Parallel Edges Dez eg B e e3 A 24 E D c 6 2