Home
Class 11
MATHS
For a frequency distribution, standard d...

For a frequency distribution, standard deviation is computed by applying the formula

A

`sigma=sqrt((Sigmafd^2)/(Sigmaf)-((Sigmafd)/(Sigmaf))^2`

B

`sigma=sqrt(((Sigmafd)/(Sigmaf))^2-(Sigmafd^2)/(Sigmaf))`

C

`sigma=sqrt((Sigmafd^2)/(Sigmaf)-(Sigmafd)/(Sigmaf))`

D

`sigma=sqrt(((Sigmafd)/(Sigmaf))^2-(Sigmafd^2)/(Sigmaf))`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOLUTION OF TRIANGLE AND HEIGHT AND DISTANCE

    PATHFINDER|Exercise QUESTION BANK|217 Videos

  • STATISTICS AND MATHEMATICAL REASONING

    PATHFINDER|Exercise QUESTION BANK|115 Videos

Similar Questions

Explore conceptually related problems

For a frequency distribution mean deviation from mean is computed by -

For a frequency distribution, mean deviation about mean is computed by

Mode of frequency distribution can be obtained from

Quartiles of a frequency distribution obtained from

A frequency distribution is said to be leptokustic when

Find the standard deviation for the following data :

Find the standard Deviation of 6 and 8.

For a continuous series the mode is computed by the formula

If the probability of success of a binomial distribution is 1/4 and the standard deviation is 3, then the value of its mean is-

If mean deviation is 12 and standard deviation is 5 K, then K is -

PATHFINDER-STATISTICS-QUESTION BANK
  1. For a frequency distribution, mean deviation about mean is computed by

    Text Solution

    |

  2. For a frequency distribution, standard deviation is computed by applyi...

    Text Solution

    |

  3. The mean of the series a,a+d, a+2d,…,a+2nd is

    Text Solution

    |

  4. The mean deviation of the series 3, 4, 5, 6, 7 about the median is

    Text Solution

    |

  5. If upsilon is the variance and sigma is the standard deviation, then

    Text Solution

    |

  6. Find the range of the data 72, 62, 44, 25, 94, 54, 9, 56, 71, 27

    Text Solution

    |

  7. Find the standard Deviation of 6 and 8.

    Text Solution

    |

  8. Find the mean if the coefficient of variation is 5% and variance is 4.

    Text Solution

    |

  9. If the mean of the numbers 27+x, 31+x, 89+x, 107+x, 156+x is 82, then ...

    Text Solution

    |

  10. In a class of 100 students there are 70 boys whose average marks in su...

    Text Solution

    |

  11. The median of a set of 9 distinct observations 20.5. If each of the la...

    Text Solution

    |

  12. A set of numbers consisting of three 4's, five 5's, six 6's, eight 8's...

    Text Solution

    |

  13. Find the mean deviation about the mean of the data : 7, 8, 4, 13, 9, 5...

    Text Solution

    |

  14. Find the mean deviation about the median of the data : 34, 23, 46, 37,...

    Text Solution

    |

  15. Find the mean if the coefficient of variation is 5% and variance is 4.

    Text Solution

    |

  16. If co-efficient of variation = 45% and mean = 24. Find the standard De...

    Text Solution

    |

  17. Two variables x and y are related by y = 2-3x If the S.D of x be 1.5 t...

    Text Solution

    |

  18. The variance of first n natural numbers is 44. Find the value of n.

    Text Solution

    |

  19. Find the range for the following frequency distribution :

    Text Solution

    |

  20. The standard Deviation of 30 observation of a sample is 4.5 If each ob...

    Text Solution

    |