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A and B are two independent events such...

A and B are two independent events such that `0 lt P(A) lt 1,0 < P(B) lt 1 ` then which of the following is not correct ?

A

A and B are mutually exclusive

B

A' and B are independent

C

A and B' are independent

D

A' and B' are independent

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The correct Answer is:
To solve the problem, we need to analyze the properties of independent events and determine which statement about events A and B is not correct. ### Step-by-step Solution: 1. **Understanding Independence**: - Two events A and B are said to be independent if the occurrence of one does not affect the occurrence of the other. Mathematically, this is expressed as: \[ P(A \cap B) = P(A) \cdot P(B) \] 2. **Understanding Mutually Exclusive Events**: - Events A and B are mutually exclusive if they cannot occur at the same time. This means: \[ P(A \cap B) = 0 \] - If A and B are independent, then they cannot be mutually exclusive unless one of the events has a probability of 0. 3. **Analyzing the Options**: - We need to check the options provided in the question. - Since A and B are independent and both have probabilities greater than 0 and less than 1, they cannot be mutually exclusive. Therefore, the statement "A and B are mutually exclusive" is incorrect. 4. **Checking Other Options**: - For the other options, we check the independence of complements: - \(A'\) (not A) and B are independent. - A and \(B'\) (not B) are independent. - \(A'\) and \(B'\) are independent. - All these statements hold true due to the properties of independent events. 5. **Conclusion**: - The only statement that is not correct is that A and B are mutually exclusive. ### Final Answer: The statement that is not correct is: **A and B are mutually exclusive.**
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  7. If P(A) = 3/10 ,P(B) = 2/5 and P(A uu B) = 3/5 then P(B/A) +P(A/B)=

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  8. If P(A) = 3/10 ,P(B) =2/5 and P(A cup B) = 3/5 , then P(B//A) +P(A//B)...

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  9. If P(A)= 7/13 ,P(B) =9/13 and P(A cap B) =4/13 then P(A/B) is equal t...

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  11. If A and B are events such that P(B) = 3/5 , P(A//B) =1/2 and P(A cup ...

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  12. If A and B are two events such that P(B) = 3/5 , P(A/B) =1/2 and P(A ...

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  13. If A and B are two events such that P(A) = 0.6 , P(B) = 0.2 and P(A//B...

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  14. If A and B are two events that P(A) gt 0 and P(B) != 1 , then P(A/B) ...

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  15. If A and B are two events such that P(A) = 3/8 , P(B) = 5/8 and P(A cu...

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  16. If A and B are independent events thenP(A cap B) is equal to

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  17. If A and B are two independent events with P(A) = 3/5 and P(B) =4/9 th...

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  18. If A and B are two independent events such that P(A cup B) = 0.8 and P...

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  19. If A and B are two events such that P(A) = 1/4 , P(A//B) = 1/2 and P(B...

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  20. If S is the sample space of random experiment S = A cup B and P(A) = ...

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