Home
Class 11
MATHS
There are three urns containing respecti...

There are three urns containing respectively `b_i` black balls, `w_i` white balls and `g_i` green balls for I = 1, 2, 3. One ball is drawn at random from each of the three urns. Find the probability that the balls are of same colour.

Promotional Banner

Topper's Solved these Questions

  • Question Paper 2015

    UNITED BOOK HOUSE|Exercise Exercise |40 Videos
  • Question Paper 2017

    UNITED BOOK HOUSE|Exercise Exercise|35 Videos

Similar Questions

Explore conceptually related problems

A box contains 7 red balls, 8 green balls and 5 white balls. A ball is drawn at random from the box. Find the probability that the ball is white.

Boxes I and II contain respectively 4 white, 3 red and 3 blue balls, and 5 white, 4 red and 3 blue balls. If one ball is drawn from each box, what is the probability that both the balls are of the same colour ?

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is not red?

A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is red?

A box contains 6 white balls and 4 black balls, A ball is drawn at random from the box. What is the probability that the ball is white.

An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is red?

A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is white?

A bag contains 3 red, 7 white, and 4 black balls. If three balls are drawn from the bag, then find the probability that all of them are of the same color.

Three bags contain respectively 3 white, 2 red balls, 7 white, 3 red balls and 5 white, 3 red balls. If a bag is selected at random and one ball is drawn from it, what is the probability that it will be a white ball ?

UNITED BOOK HOUSE-Question Paper 2016-Exercise
  1. If arithmetic mean and coefficient of variation of a variable x are 10...

    Text Solution

    |

  2. Define discrete variable and continuous variable.

    Text Solution

    |

  3. Explain the meaning of ordinal data with example.

    Text Solution

    |

  4. If A and B are mutually exclusive events, show that P(A/(A uu B)) = fr...

    Text Solution

    |

  5. Prove that P(A^C) = 1 - P(A)

    Text Solution

    |

  6. A box contains 15 balls numbered 1 to 15. Find the probability that a ...

    Text Solution

    |

  7. What is mail questionnaire method? When this method is useful?

    Text Solution

    |

  8. Write down the different steps for drawing Ogive.

    Text Solution

    |

  9. Suppose a variable x takes only two values x1 and x2 with frequencies ...

    Text Solution

    |

  10. What is interpolation? Explain Delta operator?

    Text Solution

    |

  11. Find Delta(Delta(ax^2 + bx + c)), (a ne 0).

    Text Solution

    |

  12. Explain the concepts of pairwise independence and mutual independence ...

    Text Solution

    |

  13. A1, A2……….An are n independent events such that P(Ai) = 1 - qi, I = 1,...

    Text Solution

    |

  14. What is Time Reversal Test? Show that Fisher's Index No. satisfies Tim...

    Text Solution

    |

  15. Suppose a variable assumes the values 0, 1, 2………….n with frequencies p...

    Text Solution

    |

  16. In a frequency table, the upper boundary of each class-interval has a ...

    Text Solution

    |

  17. Write down two cases when mean deviation about mean and standard devia...

    Text Solution

    |

  18. There are three urns containing respectively bi black balls, wi white ...

    Text Solution

    |

  19. Three boxes of the same appearance have the following proportions of b...

    Text Solution

    |

  20. Describe how you would construct a cost of living index number for the...

    Text Solution

    |