Home
Class 11
MATHS
Find the mean and variance of frequency ...

Find the mean and variance of frequency distribution given below: `x_i :` , `1lt=x<3` , `3lt=x<5` , `5lt=x<7` , `7lt=x<10` `f_i :` , 6, 4, 5, 1

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SOME SPECIAL SERIES

    RD SHARMA ENGLISH|Exercise All Questions|69 Videos
  • THE CIRCLE

    RD SHARMA ENGLISH|Exercise All Questions|145 Videos

Similar Questions

Explore conceptually related problems

Find the mean and variance for the following frequency distributions in

Find the mean and variance for the following frequency distributions in

Find the mean for the following frequency distribution :

Find the mean and variance of Binomial Distribution if p=1/2 ,n=1

Compute the variance of X whose distribution is given by

Find the mean and variance of the random variable X whose distribution is

Find the mean of the following frequency distribution by direct method.

Find the mean and standard deviation of the following frequency distribution :

If m and sigma^(2) are the mean and variance of the random variable X, whose distribution is given by: {:(X=x:,0,1,2,3),(P(X=x):,(1)/(3),(1)/(2),0,(1)/(6)):}

Find the mean and variance for the following probability distribution: |{:(x_(i),1,2,3,4),(p_(i),0.4,0.3,0.2,0.1):}|

RD SHARMA ENGLISH-STATISTICS-All Questions
  1. The sum of the squares of deviation of 10 observations from their mean...

    Text Solution

    |

  2. If the S.D. of a set of observations is 8 and if each observation is ...

    Text Solution

    |

  3. Find the mean and variance of frequency distribution given below: xi :...

    Text Solution

    |

  4. The mean deviation of the series a , a+d , a+2d , , a+2n from its mea...

    Text Solution

    |

  5. The standard deviation of the data: x : , 1, a , a^2 , ..., a^n f: , ...

    Text Solution

    |

  6. The mean deviation of the numbers 3,4,5,6,7 from the mean is(a) 25  ...

    Text Solution

    |

  7. A batsman scores run in 10 innings as 38,70,48,34,42,55,63,46,54 and ...

    Text Solution

    |

  8. The scores of a batsman in 10 matches were as follows: 38,70,48,34,...

    Text Solution

    |

  9. Calculate mean for the following data: xi : 3 9 17 23 27...

    Text Solution

    |

  10. Calculate the mean and standard deviation for the following data: Wage...

    Text Solution

    |

  11. The following table gives the distribution of income of 100 families i...

    Text Solution

    |

  12. While calculating mean and variance of 10 readings, a student wrong...

    Text Solution

    |

  13. Mean  and standard deviation of 100 observations were found to be 4...

    Text Solution

    |

  14. The number of telephone calls received at an exchange in 245 successiv...

    Text Solution

    |

  15. Calculate mean deviation from the median for the following distribu...

    Text Solution

    |

  16. Find the variance and standard deviation for the following data: 4,6,1...

    Text Solution

    |

  17. Complete the variance and standard deviation of the following obser...

    Text Solution

    |

  18. Calculate the mean deviation about the mean of the set of first n natu...

    Text Solution

    |

  19. Let x1, x2, x3, , be n values of a variable X. If these values are ch...

    Text Solution

    |

  20. Find the mean deviation from the mean for the data: 6,7,10,12,13,4,...

    Text Solution

    |