Home
Class 12
MATHS
The probability of a man hitting a targe...

The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice?

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • BINARY OPERATIONS

    RD SHARMA ENGLISH|Exercise All Questions|226 Videos
  • CONTINUITY

    RD SHARMA ENGLISH|Exercise All Questions|282 Videos
RD SHARMA ENGLISH-BINOMIAL DISTRIBUTION -All Questions
  1. The mean and variance of a binomial variance with parameters n and p a...

    Text Solution

    |

  2. There are three urns A, B and C. Urn A contains 4 white balls and 5 ...

    Text Solution

    |

  3. The probability of a man hitting a target is 0.25. He shoots 7 times. ...

    Text Solution

    |

  4. A bag contains 3 red and 4 black balls. One ball is drawn and then rep...

    Text Solution

    |

  5. Two cards are drawn successively with replacement from a well shuffled...

    Text Solution

    |

  6. Assume that the probability that a bomb dropped from an aeroplane will...

    Text Solution

    |

  7. Six coins are tossed simultaneously. Find the probability of getting (...

    Text Solution

    |

  8. Assume that on a n average on telephone number out of 15 called bet...

    Text Solution

    |

  9. Six dice are thrown 729 time. How many times do you expect at least...

    Text Solution

    |

  10. Assuming that half the population are consumers of chocolate, so that ...

    Text Solution

    |

  11. The probability of a man hitting a target is 1/2. How many times must ...

    Text Solution

    |

  12. An unbaised coin is tossed 8 times. Find , by using binomial distribut...

    Text Solution

    |

  13. The items produced by a company contain 10% defective items. Show that...

    Text Solution

    |

  14. A bag contains 2 white, 3 red and 4 blue balls. If the random variable...

    Text Solution

    |

  15. The probability that a bulb produced by a factory will fuse after 1...

    Text Solution

    |

  16. A die is thrown three times. Let X be the number of twos seen. Find th...

    Text Solution

    |

  17. A fair die is tossed twice. If the number appearing on the top is less...

    Text Solution

    |

  18. A factory produces bulbs. The probability that one bulb is defective i...

    Text Solution

    |

  19. To probability is 0.02 that an item produced by a factory is defective...

    Text Solution

    |

  20. If a random variable X follows binomial distribution with mean 3 and v...

    Text Solution

    |