Home
Class 11
MATHS
What is the probability that in a group ...

What is the probability that in a group of (i)2 people, both will have the same birth-day? (ii)3 people, at least two will have the same birth-day? Assuming that there are 365 days in a year and no one has his/her birth day on 29th February.

Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS

    RD SHARMA ENGLISH|Exercise All Questions|291 Videos

  • QUADRATIC EQUATIONS

    RD SHARMA ENGLISH|Exercise All Questions|85 Videos

Similar Questions

Explore conceptually related problems

Savita and Hamida are friends. What is the probability that both will have (i) the same birthday? (ii) different birthdays? (ignoring a leap year).

It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992. What is the probability that the 2 students have the same birthday?

It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992. What is the probability that the 2 students have the same birthday?

Given a group of 4 persoms , find the probability that no two of them have their birthdays on the same day of the week,

Savita and Hamida are friends. What is the probability that both will have (i) different birthdays? (ii) the same birthday? (ignoring a leap year).

Find the probability that the birth days of six different persons will fall in exactly two calendar months.

Find the probability that the birth days of six different persons will fall in exactly two calendar months.

Find the probability that the birth days of six different persons will fall in exactly two calendar months.

The year 2020 will have February of 29 days'. Is this statement true ?

Two friend were born in the same year, what is the probability that they have : (i) same birthday (ii) different birthday.

RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. Find the probability that the birth days of six different persons will...

    Text Solution

    |

  2. Twelve balls are distributed among three boxes, find the probability ...

    Text Solution

    |

  3. What is the probability that in a group of (i)2 people, both will hav...

    Text Solution

    |

  4. Three dice are thrown simultaneously. Find the probability that: (i)a...

    Text Solution

    |

  5. The letters of SOCIETY are placed at random in a row. What is the p...

    Text Solution

    |

  6. If n biscuits are distributed among N beggars, find the chance that ...

    Text Solution

    |

  7. Six new employees, two of whom are married to each other, are to be as...

    Text Solution

    |

  8. Find the probability that in a random arrangement of the letters of th...

    Text Solution

    |

  9. A typical PIN (personal identification number) is a sequence of any ...

    Text Solution

    |

  10. A word consist of 9 letters; 5 consonants and 4 vowels. Three letters ...

    Text Solution

    |

  11. If the letters of the word ASSASSINATION are arranged at random. Find ...

    Text Solution

    |

  12. In a lottery, a person choses six different natural numbers at rand...

    Text Solution

    |

  13. If the letters of the word ALGORITHM are arranged at random in row wha...

    Text Solution

    |

  14. A card is drawn from an ordinary pack of 52 cards and a gambler bets ...

    Text Solution

    |

  15. Five marbles are drawn from a bag which contains 7 blue marbles and 4 ...

    Text Solution

    |

  16. Find the probability that when a hand of 7 cards is dealt from a we...

    Text Solution

    |

  17. Four persons are to be chosen at random from a group of 3 men, 2 women...

    Text Solution

    |

  18. A box contains 10 bulbs, of which just three are defective. If a rando...

    Text Solution

    |

  19. A five digit number is formed with the digits 1,2,3,4,5 without repeti...

    Text Solution

    |

  20. A fair coin with 1 marked on one face and 6 on the other and a fair di...

    Text Solution

    |