Home
Class 12
MATHS
There are n urns each containing (n+1) b...

There are n urns each containing (n+1) balls such that ith urn contains i white balls and (n+1-i) red balls. Let u_i be the event of selecting ith urn, i=1,2,3…, n and w denotes the event of getting a white ball. IfP(u_i)=c, where c is a constant then P(u_n/w) is equal to

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    ARIHANT MATHS|Exercise Exercise (Subjective Type Questions)|15 Videos

  • PERMUTATIONS AND COMBINATIONS

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|28 Videos

  • PRODUCT OF VECTORS

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|52 Videos

Similar Questions

Explore conceptually related problems

An urn contains 4 white and 3 red balls. Let 'X' be the number of red balls in a random draw of three balls. Find the mean and variance of X.

Each of the n urns contains 4 white and 6 black balls. The (n+1) th urn contains 5 white and 5 black balls. One of the n+1 urns is chosen at random and two balls are drawn from it without replacement. Both the balls turn out to be black. If the probability that the (n+1) th urn was chosen to draw the balls is 1/16, then find the value of n .

Bag I contains 3 black and 2 white balls, Bag II contains 2 black and 4 white balls. A bag and then a ball is selected at random. Determine the probability of selecting a black ball.

Bag I contains 4 red and 6 white balls and bag 11 contains 3 red and 7 white balls. One of the bags is selected at random and a ball is drawn from it. The ball is found io be red. Find the probability that ball is drawn from bag I.

There are two bags I and II. Bag I contains 4 white and 3 red balls while another Bag II contains 3 white and 7 red balls. One ball is drawn at random from one of the bags and it is found to be white. Find the probability that it was drawn from Bag I.

Bag I contains 3 red and 5 white balls and bag 11 contains 4 red and 6 white balls. One of the bags is selected at random and a ball is drawn from it. The ball is found to be red. Find the probability that ball is drawn from bag 11

Bag I contains 5 red and 7 white balls and bag 11 contains 4 red and 8 white balls. One of the bags is selected at random and a ball is drawn from it. The ball is found to be red. Find the probability that ball is drawn from bag II.

Bag I contains 4 red and 6 white balls and bag Il contains 3 red and 7 white balls. One of the bags is selected at random and a ball is drawn from it. The ball is found to be white. Find the probability that ball is drawn from bag I.

ARIHANT MATHS-PROBABILITY-Exercise (Questions Asked In Previous 13 Years Exam)
  1. Three houses are available in a locality . Three persons apply for th...

    Text Solution

    |

  2. A randam variable X has Poisson's distribution with mean 2. Then , P(X...

    Text Solution

    |

  3. There are n urns each containing (n+1) balls such that ith urn contain...

    Text Solution

    |

  4. In a telephone enquiry system, the number of phone calls regarding rel...

    Text Solution

    |

  5. Indian and four American men and their wives are to be seated randomly...

    Text Solution

    |

  6. Let H1, H2,..., Hn be mutually exclusive events with P (Hi) > 0, i = ...

    Text Solution

    |

  7. Let E^c denote the complement of an event E. Let E,F,G be pairwise ind...

    Text Solution

    |

  8. A pair of four dice is thrown independently three times. The probabili...

    Text Solution

    |

  9. Two aeroplanes I and II bomb a target in succession. The probabilitie...

    Text Solution

    |

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

    Text Solution

    |

  11. Evluate int (cosx+x) dx

    Text Solution

    |

  12. A die is thrown. Let A be the event that the number obtained is grea...

    Text Solution

    |

  13. It is given that the events A and B are such that P(A)=1/4, P(A/B)=1/2...

    Text Solution

    |

  14. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

    Text Solution

    |

  15. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

    Text Solution

    |

  16. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

    Text Solution

    |

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

    Text Solution

    |

  18. One ticket is selected at random from 50 tickets numbered 00, 01, 02...

    Text Solution

    |

  19. Let omega be a complex cube root of unity with omega ne 1. A fair die ...

    Text Solution

    |

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

    Text Solution

    |