Maths

Example 17 In a relay race there are five teams A, B, C, D and E. (a) What is the probability that A, B and C finish first, second and third, respectively. (b) What is the probability that A, B and C are first three to finish (in any order) (Assume that all finishing orders [...]

Example 16 If A, B, C are three events associated with a random experiment, prove that B C are three events associated with a random experiment Example 16 If A Prove that November 5, 2021 Category: Chapter 16 - Probability , Maths , NCERT Exemplar Class 11 ,

Example 15 Find the probability that when a hand of 7 cards is drawn from a well shuffled deck of 52 cards, it contains (i) all Kings (ii) 3 Kings (iii) atleast 3 Kings. Example 15 Find the probability that when a hand of 7 cards is drawn from a well shuffled deck of 52 [...]

Example 14 On her vacations Veena visits four cities (A, B, C and D) in a random order. What is the probability that she visits B C and D) in a random order. What is the probability that she visits Example 14 On her vacations Veena visits four cities (A November 5, 2021 Category: Chapter [...]

Example 13 A committee of two persons is selected from two men and two women. What is the probability that the committee will have (a) no man? (b) one man? (c) two men? Example 13 A committee of two persons is selected from two men and two women. What is the probability that the committee [...]

Example 12 Two students Anil and Ashima appeared in an examination. The probability that Anil will qualify the examination is 0.05 and that Ashima will qualify the examination is 0.10. The probability that both will qualify the examination is 0.02. Find the probability that 13. Fill in the blanks in following table: (iii) 0.5 0.35 [...]

Example 11 A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow. The discs are similar in shape and size. A disc is drawn at random from the bag. Calculate the probability that it will be (i) red, (ii) yellow, (iii) blue, (iv) not blue, (v) either red [...]

Example 10 One card is drawn from a well shuffled deck of 52 cards. If each outcome is equally likely, calculate the probability that the card will be calculate the probability that the card will be Example 10 One card is drawn from a well shuffled deck of 52 cards. If each outcome is equally [...]

Example 9 Let a sample space be S = {ω1 , ω2 ,…, ω6 }.Which of the following assignments of probabilities to each outcome are valid? (e) 0.1 0.2 0.3 0.4 0.5 0.6 ... Example 9 Let a sample space be S = {ω1 ω2 ω6 }.Which of the following assignments of probabilities to each [...]

Example 9 Let a sample space be S = {ω1 , ω2 ,…, ω6 }.Which of the following assignments of probabilities to each outcome are valid? (d) 1/12 1/12 1/6 1/6 1/6 3/2 ... Example 9 Let a sample space be S = {ω1 ω2 ω6 }.Which of the following assignments of probabilities to each [...]