Home
Class 14
MATHS
A fair coin is tossed repeatedly. If tai...

A fair coin is tossed repeatedly. If tail appears on first four tosses, them the probability of head appearing that 2 white and 1 black balls will be drawn, is

A

`5/12`

B

`1/2`

C

`5/6`

D

`1/6`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS & COMBINATIONS

    QUANTUM CAT|Exercise QUESTION BANK|678 Videos

  • PROFIT , LOSS AND DISCOUNT

    QUANTUM CAT|Exercise QUESTION BANK|205 Videos

Similar Questions

Explore conceptually related problems

A fair coin is tossed repeatedly. If tail appears on first four tosses, them the probability of head appearing on fifth toss equals is

A fair coin is tossed repeatedly.If tail appears on first four tosses,then find the probability of head appearing on fifth toss.

A fair coin is tossed repeatedly. If the tail appears on first four tosses, then the probability of the head appearing on the fifth toss equals

A fair coin is tossed repeatedly. If head and tail appear alternatively on first 7 tosses, then the probability that head appears on the eighth toss is

If a coin is tossed four xx then the probability that head appears at least once is

A coin is tossed 200 times . If head appears 120 times then the probability of having a tails is :

A coin is tossed 40 times and head appears 25 times. What is the probability of getting a tail.

QUANTUM CAT-PROBABILITY-QUESTION BANK
  1. Five persons entered the lift cabin on the groud floor of an 8 floors ...

    Text Solution

    |

  2. If from each of the three boxes containing 3 white and 1 black , 2...

    Text Solution

    |

  3. A fair coin is tossed repeatedly. If tail appears on first four tosses...

    Text Solution

    |

  4. There are four calculators and it is known it is known that exactly tw...

    Text Solution

    |

  5. 20 girls, among whom are A and B sit down at a round table. The probab...

    Text Solution

    |

  6. Two integers xa n dy are chosen with replacement out of the set {0,...

    Text Solution

    |

  7. The probability that the birthdays of 4 different persons will fall in...

    Text Solution

    |

  8. If 6 objects are distributed at random among 6 persons, the probabilit...

    Text Solution

    |

  9. There is 4 volume encyclopaedia among 40 books arranged on a shelf in ...

    Text Solution

    |

  10. Four numbers are multiplied together. Then the probability that the pr...

    Text Solution

    |

  11. 8 couples (husband and wife) attend a dance show "Nach Baliye' in a po...

    Text Solution

    |

  12. Three persons A,B and C are to speak at a function along with five oth...

    Text Solution

    |

  13. A bag contains 16 coins of which 2 coins are counterfeit with heads on...

    Text Solution

    |

  14. A committee of five persons is to be chosen from a group of 9 people. ...

    Text Solution

    |

  15. A speaks truth in 60% cases and B speaks truth in 70% cases. The proba...

    Text Solution

    |

  16. Two squares are chosen at random on a chessboard, the probability that...

    Text Solution

    |

  17. Dialling a telephone number an old man forgets the last two digits ...

    Text Solution

    |

  18. Three squares of a chessboard are chosen at random. the probability th...

    Text Solution

    |

  19. The probability that a leap year selected ar random contains either 53...

    Text Solution

    |

  20. In order to get a head at least once with probability >=0.9,the minimu...

    Text Solution

    |