Home
Class 12
MATHS
The probability of a man hitting the tar...

The probability of a man hitting the target is 1/4. If he fires 7 times, the probability of hitting the target at least twice is

A

`1-(5/2) (3/4)^(6)`

B

`1-15/2 (3/4)^(2)`

C

`1-5/6.3^(5)`

D

`1-(3/4)^(6)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PERMUTATION AND COMBINATIONS

    HIMALAYA PUBLICATION|Exercise Question Bank|104 Videos

  • PROGRESSIONS

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|97 Videos

Similar Questions

Explore conceptually related problems

The probability of a shooter hitting a target is (3)/(4) . How many minimum number of times must "he" // "she" fire so that the probability of hitting the target at least once is more than 0.99?

A coin is tossed 4 times . The probability of getting atleast one head is

The probability that a person will hit a target in shooting practices is 0.3 . If he shoots 10 times , then the probability of his shooting the target is :

A coin is tossed twice. Find the probability of getting head both the times.

If a fair coin is tossed 8 times. Find the probability of at least five heads.

Three person A, B and C fire at a target, inturn starting. with A. Their probability of hitting the target are 0.4,0.3 and 0.2 respectively The probability of two hits is

Find the probability of getting 5 exactly twice in 7 throws of a die

Find the probability of getting 5 exactly twice in 7 throws of a die.

Three students appear at an examination of mathematics. The probability of their success are 1/3,1/4,1/5 respectively. Find the probability of success of at least two.

HIMALAYA PUBLICATION-PROBABILITY-QUESTION BANK
  1. A coin is tossed 3 times. The probability of getting head once and tai...

    Text Solution

    |

  2. A random variable X has the following distribution The mean and varian...

    Text Solution

    |

  3. The probability of a man hitting the target is 1/4. If he fires 7 time...

    Text Solution

    |

  4. The probability of getting a total score of 7 when two unbiased dice a...

    Text Solution

    |

  5. One of the two events A and B must occur. If P(A) = 2/3. P(B), the odd...

    Text Solution

    |

  6. A letter is selected at random from the letters of the word "PROBABILI...

    Text Solution

    |

  7. The probability of two events A and B are 0.25 and 0.40 respectively. ...

    Text Solution

    |

  8. The probability distribution of random variable X is given below. Then...

    Text Solution

    |

  9. In a competition A, B and C are participants. The probability that A w...

    Text Solution

    |

  10. If S is a sample space, P(A) = 1/3 P(B) and S = A cup B where A and B ...

    Text Solution

    |

  11. The probability distribution of a random variable X is given below. Th...

    Text Solution

    |

  12. A random variable X takes the values 0,1 and 2. If P(X=1)=P(X=2) and P...

    Text Solution

    |

  13. A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball...

    Text Solution

    |

  14. The probability of getting qualified in IITJEE and EAMCET by a student...

    Text Solution

    |

  15. One die and a coin are tossed simultaneously, the probability of getti...

    Text Solution

    |

  16. If P(A cup B) = 0.8, P(A cap B) = 0.3, then P (bar(A)) + P (bar (B)) =

    Text Solution

    |

  17. A coin is tossed n times. The probability of getting head atleast once...

    Text Solution

    |

  18. A box $X$ contains 2 white and 3 black balls and another bag Y contain...

    Text Solution

    |

  19. A random variable X takes the values 0,1,2,3 and its means is 1.3. If ...

    Text Solution

    |

  20. A coin and a six faced die, both unbiased, are thrown simultaneously. ...

    Text Solution

    |