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If (A)=3/10,P(B)=2/5 and P(AcupB)=3/5 th...

If `(A)=3/10,P(B)=2/5 and P(AcupB)=3/5` then P(B/A)+P(A/B) equals to

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The correct Answer is:
`(7)/(12)`
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CBSE COMPLEMENTARY MATERIAL-PROBABILITY-TWO MARK QUESITONS
  1. A and B are two events such that P(A)!=0.Find P(B|A), if (i) A is a s...

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  2. A random variable X has the following probability distribution find K.

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  3. If P(A) = 1/2, P(A cup B) = 3/5 and P (B) =q find the value of q is A ...

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  4. If (A)=3/10,P(B)=2/5 and P(AcupB)=3/5 then P(B/A)+P(A/B) equals to

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  5. A die is rolled if the out come is an even number. What is the probabi...

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

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  7. The probability that atleast one of the two events A and B occurs is 0...

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  8. Three events A, B and C have probalities 2/5,1/3 and 1/2, respectively...

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  9. A die, whose faces are marked 1, 2, 3 in red and 4, 5, 6 in green, is ...

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  10. An urn contains 10 black and 5 white balls. Two balls are drawn from ...

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  11. Prove that if E and F are independent events, then so are the events E...

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  12. The probability distribution of discrete random variable X is given be...

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  13. If P (A) = 7/3, P (B)= 9/13, "and" P(A cap B) = 4/13 , then find P (A/...

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  14. In Class XI of a school 40% of the students study Mathematics and 3...

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  15. If P(A)=0.4 P(B) = 0.8 and P (B/A) = 0.6 then find P(A cup B).

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  16. A die has two faces each with number 1, three faces each with numbe...

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  17. A coin is tossed 4 times. Find the mean and variance of the probabilit...

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  18. There are 25 ticketsbearing numbers form 1 to 25 one ticket is drown a...

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