Home
Class 12
MATHS
Find the mean and variance of the number...

Find the mean and variance of the number of heads on the throw of three coins.

Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    MODERN PUBLICATION|Exercise EXERCISE|543 Videos
  • MOCK TEST-3

    MODERN PUBLICATION|Exercise EXERCISE|35 Videos
  • RELATIONS AND FUNCTION

    MODERN PUBLICATION|Exercise EXAMPLE|212 Videos

Similar Questions

Explore conceptually related problems

Find the mean and variance of the number of tails on the throw of three coins.

An unbiased coin is tossed 4 times. Find the mean and variance of the number of heads obtained.

An unbiased coin is tossed 4 times. Find the mean and variance of the number of heads obtained.

Find the mean and variance of the number obtained on a throw of an unbiased die.

10 coins are tossed at random. Obtain the mean and variance of the number of heads obtained.

A dice is thrown thrice. Find the mean and variance of the number of times a 'six' is obtained.

Find the variance of the number obtained on a throw of an unbiased die.

Find the mean number of heads in three tosses of a fair coin.

MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. Find the mean and variance of the number of heads on the throw of thre...

    Text Solution

    |

  2. Compute P(A|B),if P(B) = 0.5 and P (A cap B) = 0.32

    Text Solution

    |

  3. If P (A) =7/13 , P (B) =9/13 and P (A cap B) =4/13 , evaluate P (A|B)

    Text Solution

    |

  4. If A and B are two events such that P(A)=1/4, P(B) =1/2 and P(Acap B) ...

    Text Solution

    |

  5. If P(A)=0.8, P(B)=0.5 and P(B/A)=0.4, find : P(AnnB)

    Text Solution

    |

  6. If P(A)=0.8, P(B)=0.5 and P(B//A)=0.4, find (i) P(AnnB) (ii) P(A//...

    Text Solution

    |

  7. If P(A)=0.8, P(B)=0.5 and P(B//A)=0.4, find (i) P(AnnB) (ii) P(A//...

    Text Solution

    |

  8. If P(A)=0.3, P(B)=0.6 and P(B//A)=0.5 , find P(A//B) .

    Text Solution

    |

  9. If P(A) = 6/11 , P(B) = 5/11 and P(A cup B) = 7/11 find: P(AcapB)

    Text Solution

    |

  10. If P(A) = 6/11 , P(B) = 5/11 and P(A cup B) = 7/11 find: P(A|B)

    Text Solution

    |

  11. If P(A) = 6/11 , P(B) = 5/11 and P(A cup B) = 7/11 find: P(B|A)

    Text Solution

    |

  12. If P(A)=0.6, P(B)=0.7 and P(AuuB)=0.9, then find P(A/B) and P(B/A)

    Text Solution

    |

  13. Determine P(E|F) if A coin is tossed three times, where : E : head on ...

    Text Solution

    |

  14. Determine P(E|F) if A coin is tossed three times, where : E : at leas...

    Text Solution

    |

  15. Determine P(E|F) : if A coin is tossed three times, where : E : at mo...

    Text Solution

    |

  16. A die is thrown three times : E : 4 appears on the third toss . F ...

    Text Solution

    |

  17. Determine P(E|F) Mother, father and son line up at random for a famil...

    Text Solution

    |

  18. A black and a red dice are rolled :Find the conditional probability of...

    Text Solution

    |

  19. A black and a red dice are rolled: Find the conditional probability of...

    Text Solution

    |

  20. Let E and F be events with P(E)=3/5, P(F)=3/10 and P (E cap F)=1/5. Ar...

    Text Solution

    |

  21. A fair die is rolled. Consider events E = {1,3,5}, F = {2,3}, and G = ...

    Text Solution

    |