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For any two events A and B in a sample s...

For any two events A and B in a sample space

A

`P(A//B)ge(P(A)+P(B)-1)/(P(B)),P(B)ne0` is always true.

B

`P(Acapoverline(B))=P(A)-P(A capB)` does not hold

C

`P(AcupB)=1-P(overline(A))P(overline(B))`, if A and B are independent

D

`P(AcupB)=1-P(overline(A))P(overline(B))`, if A and B are disjoint.

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The correct Answer is:
A, C
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ML KHANNA-PROBABILITY-Self Assessment Test
  1. If A and B are mutually exclusive events,thenP(AuuB)=

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  2. If A and B are two independent events in a sample space then P(overlin...

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  3. For any two events A and B in a sample space

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  4. The probabilities of three mutually exclusive events A,B,C are : P(A)=...

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  5. The probability that at least one of the events A and B occurs is 0.7 ...

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  6. If 0 lt P(A) lt 1, 0 lt P(B) lt 1 and P(A cup B)=P(A)+P(B)-P(A)P(B), ...

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  7. For the three events "A","B","andC","P"("e x a c t l yo n eo ft h ee v...

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  8. For a biased die, the probabilities for the different faces to turn up...

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  9. A biased die is tossed and the respective probabilities for various fa...

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  10. Three identical dice are rolled. The probability that same number appe...

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  11. A letter is known to have come either from LONDON or CLIFTON, on the p...

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  12. A card from a pack 52 cards is lost. From the remaining cards , two ca...

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  13. The probability that in the toss of two dice we obtain an even sum or ...

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  14. A determinant is chosen at random from the set of all determinants of ...

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  15. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

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  16. One ticket is selected at ransom form 50 tickets numbered 00,01,02,…,4...

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  17. In a binomial distribution B(n , p=1/4) , if the probability of at lea...

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  18. Four fair dice D(1),D(2),D(2) and D(4) each having six faces numbered...

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  19. An urn contains nine balls of which three are red, four are blue and t...

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  20. Three numbers are chosen at random without replacement from {1, 2, 3, ...

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