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Kriti
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Write the sample space and calculate the probability based on the given information. (i) Two dice are rolled. What is the probability that the sum is a prime number greater than 5? (ii) A bag contains 4 red, 3 green, and 2 blue balls. Two balls are drawn without replacement. What is the probability that both are of different colours? (iii) Three coins are tossed. What is the probability that the first coin shows heads and exactly two heads occur in total? (iv) A four-digit number is formed using the digits 1, 2, 3, and 4 with no repetition. What is the probability that the number is even? (v) A student takes a multiple-choice test with 3 questions, each having 4 options (A, B, C, D), with only one correct answer. What is the probability that the student guesses and gets exactly 2 answers correct?

(i) Primes 7 and 11 give 8 pairs, P = 8/36 = 2/9. (ii) P(different) = 1 – P(same) = 1 – 13/36 = 23/36. (iii) Favourable outcomes {HHT, HTH}, P = 2/8 = 1/4. (iv) Last digit 2 or 4, P = ...

3 green and 2 blue ballsa bag contains 4 redganita manjari class 9 exercise 7.2 solutionsganita manjari class 9 exercise 7.3 solutionsganita manjari class 9 exercise 7.4 solutionsncert solutions – the mathematics of maybe: introduction to probabilityprobability that the sum is a prime number greater than 5
Virat
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(i) The sample space is S = {(Samosa, Chai), (Samosa, Lassi), (Pakora, Chai), (Pakora, Lassi), (Bhaji, Chai), (Bhaji, Lassi)}, giving 6 outcomes. (ii) The event selecting Samosa is E = {(Samosa, Chai), (Samosa, Lassi)}.

ganita manjari class 9 exercise 7.2 solutionsganita manjari class 9 exercise 7.3 solutionsganita manjari class 9 exercise 7.4 solutionsncert class 9 ganita manjari chapter 7 question answersample space of all possible snack and drink combinationsselecting samosa as a snackthere are 3 popular snacks availablevillage fair
Virat
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(i) S = {1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T, 5H, 5T, 6H, 6T} with 12 outcomes. (ii) S = {-4, -3, -2, -1, 0, 1, 2, 3, 4}. (iii) By color, S = {Green, Red}; by distinct balls, S = ...

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