Home
Class 12
MATHS
A couple has two children. Find the prob...

A couple has two children. Find the probability that both children are males, if it is known that atleast one of the children is male.
ii. Find the probability that both children are females, if it is known that the eIder chiId is a female.

Text Solution

Verified by Experts

The correct Answer is:
(i) `(1)/(3)` (ii) `(1)/(2)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NCERT TAMIL|Exercise EXERCISE 3.5|15 Videos

  • ORDINARY DIFFERENTIAL EQUATIONS

    NCERT TAMIL|Exercise EXERCISE 10.9|25 Videos

  • PROBABILITY DISTRIBUTIONS

    NCERT TAMIL|Exercise EXERCISE 11.6 (Choose the Correct )|19 Videos

Similar Questions

Explore conceptually related problems

A couple has two children. Find the probability that (i) both the children are boys, if it is known that the older child is a boy. (ii) both the children are girls, if it is known that the older child is a girl.

A family has two children. What is the probability that both the children are boys given that at least one of them is a boy ?

In a two children family, find the probability that there is at least one girl in a family.

If A and B are two independent events, the probability that both A and B occur is 1/8 are the probability that neither of them occours is 3/8. Find the probaility of the occurrence of A.

Aa n dB are two independent events. The probability that both Aa n dB occur is 1/6 and the probability that neither of them occurs is 1/3. Find the probability of the occurrence of Adot

Two cards are drawn from a pack of 52 cards is succession. Find the probability that both the cards are queens,when the first drawn card is not replaced.

From a pack of 52 cards, two are drawn one by one without replacement. Find the probability that both of them are kings.

A coin is tossed thrice. Find the probability of getting exactly two heads or atleast one tail or two consecutive heads.

If two coins are tossed, find the probability of the following events: Getting atleast one head

If two coins are tossed, find the probability of the following events: Getting atleast one head

NCERT TAMIL-PROBABILITY-MISCELLANEOUS EXERCISE ON CHAPTER 13
  1. A and B are two events such that P(A) ne 0. Find P(B/A) if (i) A is a ...

    Text Solution

    |

  2. A couple has two children. Find the probability that both children are...

    Text Solution

    |

  3. Suppose that 5% of men and 0.25% of women have grey hair. A grey haire...

    Text Solution

    |

  4. Suppose that 90% of people are right- handed. What is the probability ...

    Text Solution

    |

  5. An urn contains 25 balls of which I0 balls bear a mark 'X' and remaini...

    Text Solution

    |

  6. In a hurdle race, a player has to cross 10 hurdles. The probability th...

    Text Solution

    |

  7. A die is thrown again and again until three sixes are obtained. Find t...

    Text Solution

    |

  8. If a leap year is selected at random, what is the chance that it will ...

    Text Solution

    |

  9. An experiment succeeds twice as often as it fails. Find the probabilit...

    Text Solution

    |

  10. How many times must a man toss a fair coin so that the probability of ...

    Text Solution

    |

  11. In a game, a man wins a rupee for a six and loses a rupee for any othe...

    Text Solution

    |

  12. Suppose we have four boxes A, B, C and D containing coloured marbles a...

    Text Solution

    |

  13. Assume that the chances of a patient having a heart attack is 40%. It ...

    Text Solution

    |

  14. If each element of a second order determinant is either zero or one, w...

    Text Solution

    |

  15. An electronic assembly consists of two sub-systems, say, A and B. From...

    Text Solution

    |

  16. Bag I contains 3 red and 4 black balls and Bag II contains 4 red and 5...

    Text Solution

    |

  17. Choose the correct answer: If A and B are two events such that P(A) ...

    Text Solution

    |

  18. Choose the correct answer: If P(A|B) gt P(A), then which of the foll...

    Text Solution

    |

  19. Choose the correct answer: If A and B are any two events such that P...

    Text Solution

    |