Home
Class 12
MATHS
It is know that 10% of certain articles ...

It is know that 10% of certain articles manufactured are defective.What is the probability that in a random sample of 12 such articles,9 are defective?

Promotional Banner

Topper's Solved these Questions

  • Applications of Derivatives

    CHETANA PUBLICATION|Exercise Exercise|144 Videos

  • Definite integration

    CHETANA PUBLICATION|Exercise Exercise|111 Videos

Similar Questions

Explore conceptually related problems

A box contains 300 electric bulbs out of which 18 are defective. What is the probability that bulb chosen will not be defective?

There are 5% defective items in a large bulk of items.What is the probability that a sample of 10 items will include not more than one defective item?

A box contains 10 sample watches, 2 of which are defective. If 2 are selected at random, the probability that both selected are defective is,

A box contains 10 sample watches, 2 of which are defective. If 2 are selected at random, the probability that both selected are defective is,

On certain article if the rate of CGST is 9% then what is the rate of SGST? What is the rate of GST?

On certain article , if the rate of CGST is 9% then what is the rate of SGST ?What is the rate of GST?

CHETANA PUBLICATION-BINOMIAL DISTRIBUTION-EXERCISE
  1. In a box of floppy discs is known that 95% will work.A sample of three...

    Text Solution

    |

  2. Find the probability of throwing atmost 2 sixes in 6 throws of a singl...

    Text Solution

    |

  3. It is know that 10% of certain articles manufactured are defective.Wha...

    Text Solution

    |

  4. Given that X~B(n,p) (i)If n=10 and p=0.4,find E(X) and Var(X).

    Text Solution

    |

  5. Given X~B(n,p)(ii)If P=0.6,E(X)=6,find n and Var(X).

    Text Solution

    |

  6. Given X~B(n,p)(iv)If n=25,E(X)=10,find P and SD(X).

    Text Solution

    |

  7. Given that X~B(n,p) (iv)If n=10,E(X)=8,find Var(X).

    Text Solution

    |

  8. Let X~B(10,0.2).Find (i)(X=1)

    Text Solution

    |

  9. Let X~B(10,0.2).Find (ii)P(Xge1)

    Text Solution

    |

  10. Let X~B(10,0.2).Find (iii)P(Xle8)

    Text Solution

    |

  11. LetX~B(n,p)(i)If n=10,E(X)=5,find p and Var(X).

    Text Solution

    |

  12. LetX~B(n,p)(ii)If E(X)=5 and Var(X)=2.5,find n and p.

    Text Solution

    |

  13. If fair coin is tossed 10 times find the probability that it shoes hea...

    Text Solution

    |

  14. If fair coin is tossed 10 times find the probability that it shoes hea...

    Text Solution

    |

  15. The probability that a bomb will hit a target is 0.8.Find the probabil...

    Text Solution

    |

  16. The probability that a mountain-bike rider travelling along a certain ...

    Text Solution

    |

  17. The probability that a mountain-bike rider travelling along a certain ...

    Text Solution

    |

  18. The probability that a mountain-bike rider travelling along a certain ...

    Text Solution

    |

  19. The probability that a lamp in a classroom will be burnt out is 0.3.Si...

    Text Solution

    |

  20. Lot of 100 items contains 10 defective items.Five itwms are selected a...

    Text Solution

    |