Home
Class 11
MATHS
Find the mean, variance and standard dev...

Find the mean, variance and standard deviation of first `n` natural numbers.

Text Solution

Verified by Experts

The correct Answer is:
`1/6(n+1)(2n+1),sqrt(1/180(n+1)(2n+1)(8n^(2)+3n-11))`
NA
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    NAGEEN PRAKASHAN|Exercise NCERT QUESTIONS|27 Videos

  • STATISTICS

    NAGEEN PRAKASHAN|Exercise MISCELLANEOUS EXERCISE|7 Videos

  • STATISTICS

    NAGEEN PRAKASHAN|Exercise MISCELLANEOUS EXERCISE|7 Videos

  • SETS

    NAGEEN PRAKASHAN|Exercise MISC Exercise|16 Videos

  • STRAIGHT LINES

    NAGEEN PRAKASHAN|Exercise Exercise|206 Videos

Similar Questions

Explore conceptually related problems

Standard deviation of first n odd natural numbers is

The standard deviation for first natural number is

The standard deviation of the first n natural numbers is

Two cards are drawn simultaneously (or successively without replacement) from a well shuffled pack of 52 cards.Find the mean, variance and standard deviation of the number of kings.

Find the mean, standard deviation and variance of first n natural numbers.

Find the variance of first n natural numbers.

Calculate the mean and standard deviation of first natural numbers.

NAGEEN PRAKASHAN-STATISTICS-EXERCISE
  1. Find the mean deviation using mean for the following datas:

    Text Solution

    |

  2. Find the mean deviation from median for the following tables:

    Text Solution

    |

  3. Find the mean deviation from the short cut method.

    Text Solution

    |

  4. Find the standard deviation from the followig datas: (a) 10,20,30,4...

    Text Solution

    |

  5. Find the standard deviation from the following datas:

    Text Solution

    |

  6. Find the standard deviation from the following datas, using assumed me...

    Text Solution

    |

  7. Find the standard deviation from the following datas, using assumed me...

    Text Solution

    |

  8. Find the standard deviation from the following datas, using assumed me...

    Text Solution

    |

  9. The mean and variance of 5 observations are respectively 4.4 and 8.24....

    Text Solution

    |

  10. The mean and variance of 8 observations are respectively 9 and 9.25. I...

    Text Solution

    |

  11. The mean and standard deviation of 100 observations were calculated as...

    Text Solution

    |

  12. The mean and standard deviation of 20 observations are found to be ...

    Text Solution

    |

  13. Calculate the mean and standard deviation of first natural numbers.

    Text Solution

    |

  14. Find the mean, variance and standard deviation of first n natural numb...

    Text Solution

    |

  15. Find out the standard deviation from the following distribution table:

    Text Solution

    |

  16. If the coefficients of variations for two distributions are 40 and 50 ...

    Text Solution

    |

  17. Find which group is more variable:

    Text Solution

    |

  18. The arithmetic means of two distributions are 20 and 35 and their S.D....

    Text Solution

    |

  19. Find which group is more variable:

    Text Solution

    |

  20. In the following table, the mean and S.D. of the income of the employe...

    Text Solution

    |