Home
Class 12
MATHS
A unbiased coin is tossed. If the result...

A unbiased coin is tossed. If the result is a head a pair of unbiased dice is rolled and the sum of the numbers obtained is noted. If the result is a tail, card from a well shuffled pack of eleven cards numbered 2, 3, 4, ………12 is picked and the number on the card is noted. What is the probability that the noted number is either 7 or 8?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • MEAN VALUE THEOREMS

    RD SHARMA ENGLISH|Exercise All Questions|134 Videos

  • RELATIONS

    RD SHARMA ENGLISH|Exercise All Questions|197 Videos
RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. One bag contains 4 yellow and 5 red balls. Another bag contains 6 y...

    Text Solution

    |

  2. The contents of three bags, I, II and III are s follows: Bag I:1 white...

    Text Solution

    |

  3. A unbiased coin is tossed. If the result is a head a pair of unbiased ...

    Text Solution

    |

  4. The bag A contains 8 white and 7 black balls while the bag B contains ...

    Text Solution

    |

  5. A bag contains 4 white and 5 black balls and another bag contains 3 ...

    Text Solution

    |

  6. An urn contains 10 white and 3 black balls.Another urn contains 3 whit...

    Text Solution

    |

  7. Three machinesE1, E2 and E3 in a certain factory producing electric...

    Text Solution

    |

  8. In a factory which manufactures bolts, machines A. B and C manufacture...

    Text Solution

    |

  9. Three urns contain 6 red, 4 black 4 red, 6 black and 5 red, 5 black ...

    Text Solution

    |

  10. An insurance company insured 2000 scooter drivers, 4000 car drivers ...

    Text Solution

    |

  11. A card from a pack of 52 cards is lost. From the remaining cards of th...

    Text Solution

    |

  12. Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin ...

    Text Solution

    |

  13. Given three identical boxes I, II and III, each containing two coins. ...

    Text Solution

    |

  14. Bag I contains 3 red and 4 black balls and Bag II contains 4 red an...

    Text Solution

    |

  15. Suppose that 5% of men and 0.25% of women have grey hair. A grey haire...

    Text Solution

    |

  16. A bag contains 4 balls. Two balls are drawn at random, and are foun...

    Text Solution

    |

  17. A bag contains 3 red and 7black balls. Two balls are selected at rando...

    Text Solution

    |

  18. Suppose that 6% of the people with blood group O are left handed and 1...

    Text Solution

    |

  19. As man is known to speak truth 3 out of 4 times. He throws a die and ...

    Text Solution

    |

  20. In a competitive examination, an examinee either guesses or copies or ...

    Text Solution

    |