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In a class of 60 students, 30 opted for ...

In a class of 60 students, 30 opted for NCC, 32 opted for NSS and 24 opted for both NCC and NSS. If one of these students is selected at random, find the probability that(i)         The student opted for NCC or NSS.(ii)        The student has opted neither NCC nor NSS.(iii)       The student has opted NSS but not NCC.

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To solve the problem step by step, we can use the principle of inclusion-exclusion to find the probabilities for each part of the question. ### Given Data: - Total number of students, \( n = 60 \) - Students who opted for NCC, \( n(A) = 30 \) - Students who opted for NSS, \( n(B) = 32 \) - Students who opted for both NCC and NSS, \( n(A \cap B) = 24 \) ...
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NCERT-PROBABILITY-EXERCISE 16.3
  1. A fair coin with 1 marked on one face and 6 on the other and a fair d...

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  2. A card is selected from a pack of 52 cards. (a)        How many point...

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  3. A fair coin is tossed four times, and people win Re 1 for each head a...

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  4. There are four men and six women on the city council. If one council ...

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  5. Which of the following cannot be valid assignment of probabilities fo...

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  6. A die is thrown, find the probability of following events: (i) A pri...

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  7. A coin is tossed twice, what is the probability that atleast one tail...

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  8. In a class of 60 students, 30 opted for NCC, 32 opted for NSS and 24 ...

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  9. The probability that a student will pass the final examination m both...

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  10. Three coins are tossed once. Find the probability of getting (i) 3 he...

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  11. Check whether the following probabilities P(A) and P(B) are consisten...

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  12. Fill in the blanks m following table:

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  13. A letter is chosen at random from the word ‘ASSASSINATION’. Find the ...

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  14. In a lottery, a person choses six different natural numbers at random...

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  15. Events E and F are such that P(not E or not F) = 0.25, State whether E...

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  16. A and B are events such that P(A) = 0. 42, P(B) = 0. 48and P(A a n d B...

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  17. Give P(A) =3/5and P(B) =1/5dotFind P(A or B), if A and B are mutually ...

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  18. If E and F are events such that P(E) = 1/4, P(F) =1/2 and P(E and F)...

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  19. In Class XI of a school 40% of the students study Mathematics and 30%...

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  20. In an entrance test that is graded on the basis of two examinations, ...

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