Home
Class 14
MATHS
Let barx be The the mean of x(1),x(2),x...

Let `barx` be The the mean of `x_(1),x_(2),x_(3)…x_(n)` if `x_(i) = a +cy_(i)` , for some constants a and c. then what will be the mean of `y_(1),y_(2),y_(3)…y_(n)`

A

`sigma`

B

`sigma+k`

C

`sigma-k`

D

`k sigma`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    PUNEET DOGRA|Exercise PRE YEAR QUESTIONS |163 Videos

  • SET & RELATION

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|65 Videos

  • TRIGONOMETRY

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|163 Videos

Similar Questions

Explore conceptually related problems

Let barx be the mean of x_(1),x_(2),x_(3),……..,x_(n) . If x_(i)=a+cy_(i) for some constants a and c, then what will be the mean of y_(1),y_(2),y_(3),……..,y_(n) ?

Let barx be the mean of x_(1), x_(2), ………, x_(n) and bary be the mean of y_(1), y_(2),……….,y_(n) . If barz is the mean of x_(1), x_(2), ……………..x_(n), y_(1), y_(2), …………,y_(n) , then barz is equal to

Let barx be the mean of n observations x_(1),x_(2),……..,x_(n) . If (a-b) is added to each observation, then what is the mean of new set of observations?

The geometric mean of the observation x_(1),x_(2),x_(3),……..,_(n) is G_(1) , The geometric mean of the observation y_(1),y_(2),y_(3),…..y_(n) is G_(2) . The geometric mean of observations (x_(1))/(y_(1)),(x_(2))/(y_(2)),(x_(3))/(y_(3)),……(x_(n))/(y_(n)) us

If barx is the mean of x_1, x_2, x_3, ... .. , x_n , then sum_(i=1)^(n)(x_i-barx)=

PUNEET DOGRA-STATISTICS-PRE YEAR QUESTIONS
  1. What is the median of the distribution 3, 7, 6, 9, 5,4, 2?

    Text Solution

    |

  2. The mean of 7 observation is 10 and that of 3 observations is 5. What ...

    Text Solution

    |

  3. Student of three sections of a class, having 30, 30 and 40 students ap...

    Text Solution

    |

  4. Some measure central tendency for a discrete observations are given be...

    Text Solution

    |

  5. The following table gives the continous frequency distribution of a co...

    Text Solution

    |

  6. The following table gives the continous frequency distribution of a co...

    Text Solution

    |

  7. If the regression coefficient of x and y on'x are -1/2 and -1/8 respec...

    Text Solution

    |

  8. The side of a cube measures 9 cm. What will be the diagonal of the cub...

    Text Solution

    |

  9. What is the cumulative frequency curve of statistical data commonly ca...

    Text Solution

    |

  10. The average daily income of workers of a factory including that the o...

    Text Solution

    |

  11. The variance of a data is 144, find the standard deviation

    Text Solution

    |

  12. The mean deviation of the data 2, 9, 9, 3, 6, 9, 4 from the mean is : ...

    Text Solution

    |

  13. Which of the following statement best describes frequency?

    Text Solution

    |

  14. Find the median of the following data :

    Text Solution

    |

  15. The frequency distribution of life of 90 TV tubes whose medians is 17 ...

    Text Solution

    |

  16. The frequency distribution of life of 90 TV tubes whose medians is 17 ...

    Text Solution

    |

  17. The frequency distribution of life of 90 TV tubes whose medians is 17 ...

    Text Solution

    |

  18. The distributions X and Y with total number of observations 36 and 64 ...

    Text Solution

    |

  19. Let barx be The the mean of x(1),x(2),x(3)…x(n) if x(i) = a +cy(i) ,...

    Text Solution

    |

  20. Find the mode of the following data :

    Text Solution

    |