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If A and B are two disjoint events such ...

If A and B are two disjoint events such that P(A) = 2/7 , P(B)=3/5 then `P(A or B)`=

A

`9//10`

B

`31//35`

C

`23//30`

D

`5//8`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PROBABILITY-EXERCISE-1B
  1. If P(A) = 3/4 , P(B) = 2/5 , P(Ann B) = 1/4 then P(A uu B) =

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  2. If A and B are two disjoint events such that P(A) = 2/7 , P(B)=3/5 the...

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  3. If A and B are two events such that P(A)=1//4, P(B)=1//2, P(uuB)=5//8 ...

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  4. If A and B are two events such that P(A uu B)=0.65, P(A nnB)=0.15 then...

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  5. If P (A uu B)=0.8, P(AnnB)=0.3 then P(barA)+P(barB)=

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

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  7. If P(A) =0.25 , P(B)=0.5, P(A nn B)=0.14 then P(barA nn barB)=

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  8. If A,B are independent events P(A nn B)=1//2 , P(A)=p, P(B)=2p, then t...

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  9. If A, B are two mutually exclusive events such that P(A)=0.5 ,P(B)=0.3...

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  10. If P(A)=0.4, P(A uu B)=0.7 and A,B are disjoint then P(B)=

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  11. If A and B are events of a random experiment such that P(A uuB)=4//5, ...

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  12. Suppose that A and B are two independent events such that P(A nn B) =3...

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  13. When two dice are thrown , the probability of getting the sum 7 or 8 i...

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  14. When two dice are thrown , the probability of getting the sum 10 or 11...

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  15. Two fair dice are rolled. The probability of the sum of digits on thei...

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  16. Two dice are thrown simultaneously. The probability that the sum of th...

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  17. Two dice are thrown simultaneously. The probability that the sum of th...

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  18. If two dice are rolled then the probability that their sum is a prime ...

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  19. When a pair of six faced fair dice are thrown, the probability that th...

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  20. A and B throw with three dice. If A throws 16, then B's chance of thro...

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