Home
Class 12
MATHS
A man speaks truth 3 out of 4 times. He ...

A man speaks truth 3 out of 4 times. He throws a die and reports that it is a six. What is the probability that is a six?

Text Solution

Verified by Experts

The correct Answer is:
`(3)/(4)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NEW JOYTHI PUBLICATION|Exercise SOLUTIONS TO NCERT TEXT BOOK EXERCISE 13.1|17 Videos
  • PROBABILITY

    NEW JOYTHI PUBLICATION|Exercise SOLUTIONS TO NCERT TEXT BOOK EXERCISE 13.2|18 Videos
  • PRINCIPLES OF MATHEMATICAL INDUCTION

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|4 Videos
  • RELATIONS AND FUNCTIONS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|33 Videos

Similar Questions

Explore conceptually related problems

A man is known to speak truth 3 out of 4 times. He throws a die and reports that it is a six. Find the probability that it is actually a six.

Probability that A speaks truth is (4)/(5) A coin is tossed. A reports that a head appears. The probability that there was head is

Probability that A speaks truth is 4/5 . A coin is tossed. A reports that a head appears. The probability that actually there was head is (A) 4/5 (B) 1/2 (C) 1/5 (D) 2/5

X speaks truth in 70 percent of cases and Y in 90 percent of cases. What is the probability that they likely to c ontradict each other in stating the same fact?

A speaks truth in 80% cases and B speaks truth in 70% cases.What is the probability that they like to contradict each other in stating the same fact.

A die is thrown 4 times. Find the probability of getting at most two 6.

In answering a question on a multiple choice test, a student either knows the answer or guesses. Let 3/4 be the probability that he knows the answer and 1/4 be the probability that he guesses. Assuming that a student who guesses at the answer will be correct with probability 1/4 . What is the probability that the student knows the answer given that he answered it correctly ?

A man and a woman appear in an interview for two vacancies in the same post. The probability of mans selection of 1/4 and that the womans selection is 1/3. What is the probability that none of them will be selected?

The probability that a student selected at random from a class will pass in Mathematics is 2/3 and the probability that he passes in Mathematics and English is 1/3 . What is the probability that he will pass in English if it is known that he has passed in Mathematics ?

NEW JOYTHI PUBLICATION-PROBABILITY-QUESTIONS FROM COMPETITIVE EXAMS
  1. A man speaks truth 3 out of 4 times. He throws a die and reports that ...

    Text Solution

    |

  2. In a non-leap year the probability of getting 53 Sundays or 53 Tuesda...

    Text Solution

    |

  3. The probability for a randomly chosen month to have its 10^(th) day a...

    Text Solution

    |

  4. The probability that in a family of 5 members, exactly 2 members have ...

    Text Solution

    |

  5. Two numbers a and b are chosen at random from the set of first 30 nat...

    Text Solution

    |

  6. If three natural numbers from 1 to 100 are selected randomly then pro...

    Text Solution

    |

  7. If A and B are any two events, then P(A cap B')=

    Text Solution

    |

  8. A complete cycle of a traffic light takes 60 seconds. During each cyc...

    Text Solution

    |

  9. If A and B are mutually exclusive events and if P(B)=(1)/(3), P(A cup...

    Text Solution

    |

  10. If two numbers p and q are chosen randomly from the set {1, 2, 3, 4} ...

    Text Solution

    |

  11. A die is rolled three times. The probability that the sum of three nu...

    Text Solution

    |

  12. Five dice are tossed. What is the probability that the five numbers s...

    Text Solution

    |

  13. If two dice are thrown simultaneously, then the probability that the ...

    Text Solution

    |

  14. Let A and B be two events such that P(A cup B) = P(A) + P(B) - P(A)P(...

    Text Solution

    |

  15. A and B are events such that P(A cip B)= (3)/(4), P(A cap B)= (1)/(4...

    Text Solution

    |

  16. Events A, B, C are mutually exclusive events such that P(A) = (3x +1...

    Text Solution

    |

  17. Five horses are in a race. Mr. A selects two of the horses at random ...

    Text Solution

    |

  18. Three houses are available in a locality. Three persons apply for the...

    Text Solution

    |

  19. A die is thrown. Let A be the event thatthe number obtained is greater...

    Text Solution

    |

  20. An urn contains nine balls of which three are red, four are blue and ...

    Text Solution

    |

  21. Four numbers are chosen at random (without replacement) from the set...

    Text Solution

    |