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There are 3 bags which are known to cont...

There are 3 bags which are known to contain 2 white and 3 black, 4 white and 1 black, and 3 white and 7 black ball, respectively. A ball is drawn at random from one of the bags and found to the black ball. Then the probability that it was drawn from the bag containing the most black ball is `7//15` b. `5//19` c. `3//4` d. none of these

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CENGAGE PUBLICATION-PROBABILITY-All Questions
  1. A bag contains 3 white, 3 black and 2 red balls. One by one, three ...

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  2. If p is the probability that a man aged x will die in a year, then t...

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  3. There are 3 bags which are known to contain 2 white and 3 black, 4 ...

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  4. A man alternately tosses a coin and throws a die beginning with the...

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  5. If A and B each toss three coins. The probability that both get the sa...

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  6. If n integers taken at random are multiplied together , then the p...

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  7. A fair die is thrown 20 times. The probability that on the 10th thro...

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  8. A is a set containing n different elements. A subset P of A is chosen....

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  9. If a fair coin is tossed thrice find the probability that there are ...

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  10. Consider f(x) =x^3+ax^2+bx+c Parameters a, b, c are chosen as the face...

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  11. A dice is thrown once. Find the pobability of getting a prime number.

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  12. In a knockout tournament, 2^(n) equally skilld players, S(1), S(2), …,...

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  13. Let Aa n dB be two events such that P(A)=3//5a n dP(B)=2//3. Then Stat...

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  14. The total number of ways in which 5 balls of different colours can be ...

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  15. A single which can can be green or red with probability 4/5 and 1/5 re...

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  16. Thirty two players ranked 1 to 32 are playing is a knockout tournament...

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  17. Two different numbers are taken from the set {0,1,2,3,4,5,6,7,8,9,10}d...

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  18. Two events A and B have probabilities 0.25 and 0.50 respectively the p...

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  19. The probability of happening an event A in one trial is 0.4. Find the ...

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  20. An unbiased die is thrown twice. Let the event A be "odd number on ...

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