Home
Class 12
MATHS
If the mean of a set of observations x(1...

If the mean of a set of observations `x_(1),x_(2), …,x_(n)" is " bar(X)`, then the mean of the observations `x_(i) +2i , i=1, 2, ..., n` is

A

`bar(x)+2`

B

`bar(x)+n`

C

`bar(x)+2n`

D

`bar(x)+n+1`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MEASURES OF CENTRAL TENDENCY

    ML KHANNA|Exercise Problem Set (1) (Measures of Disperation) |23 Videos

  • MEASURES OF CENTRAL TENDENCY

    ML KHANNA|Exercise SELF ASSESSMENT TEST |5 Videos

  • MEASURES OF CENTRAL TENDENCY

    ML KHANNA|Exercise ASSERTION / REASON|1 Videos

  • MAXIMA AND MINIMA

    ML KHANNA|Exercise MISCELANEOUS EXERCISE (COMPREHENSION)|3 Videos

  • NUMERICAL METHODS

    ML KHANNA|Exercise SELF ASSESSMENT TEST|10 Videos

Similar Questions

Explore conceptually related problems

If the mean of the set of numbers x_(1),x_(2),...x_(n) is bar(x), then the mean of the numbers x_(i)+2i,1<=i<=n is

If the mean of the set of numbers x_(1),x_(2),x_(3),...,x_(n) is bar(x), then the mean of the numbers x_(i)+2i,1<=i<=n is

If the mean of n observations x_(1),x_(2),x_(3)...x_(n) is bar(x) then the sum of deviations of observations from mean is

If the mean of a set of observations x_(1), x_(2),……,x_(10) is 40, then the mean of x_(1)+4, x_(2)+8, x_(3)+12,…….,x_(10)+40 is

If the mean and S.D. of n observations x_(1),x_(2)......x_(n) are x and ? resp,then the sum of squares of observations is

If the standard deviation of n observation x_(1), x_(2),…….,x_(n) is 5 and for another set of n observation y_(1), y_(2),………., y_(n) is 4, then the standard deviation of n observation x_(1)-y_(1), x_(2)-y_(2),………….,x_(n)-y_(n) is

If the mean of a set of observations x_(1),x_(2),..........,x_(10) is 20, then the mean of x_(1)+4,x_(2)+8,x_(3)+12,......,x_(10)+40

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

ML KHANNA-MEASURES OF CENTRAL TENDENCY -Problem Set (1) (Measures of Central Tendency)
  1. The algebraic sum of deviations of ten observations about 15 is 70. Th...

    Text Solution

    |

  2. A distribution has mean =8*7, median =8*5 and mode =7*3. The distribut...

    Text Solution

    |

  3. The average of daily wages for the workers of the two factories combin...

    Text Solution

    |

  4. Marks obtained by four students are : 25, 35, 45, 55. The average de...

    Text Solution

    |

  5. The quartile deviation of the income of a certain person given in rupe...

    Text Solution

    |

  6. The weighted mean of first n natural numbers whose weights are equal t...

    Text Solution

    |

  7. The arithmetic mean of n numbers of a series is bar(x). The sum of the...

    Text Solution

    |

  8. If a variate takes values a, ar,ar^(2),..ar^(n-1) which of the relatio...

    Text Solution

    |

  9. A population of values is symmetrically distributed about the constant...

    Text Solution

    |

  10. The geometric mean of the series 1,2,4,8,16,....,2^n is

    Text Solution

    |

  11. An aeroplane flies round a square, the sides of which measure 100 mile...

    Text Solution

    |

  12. A group of 10 items has arithmetic mean 6. If the arithmetic mean of 4...

    Text Solution

    |

  13. If the mean of a variate x is m, the mean of (ax+b)/(c ) where a,b,c a...

    Text Solution

    |

  14. The numbers 3,5,7,4 have frequencies x,x+4,x-3,x+8. If their arithmeti...

    Text Solution

    |

  15. If the mean of a set of observations x(1),x(2), …,x(n)" is " bar(X), t...

    Text Solution

    |

  16. If the mode and mean of a moderately asymmetrical series are 16 inche...

    Text Solution

    |

  17. The results of two colleges are as follows : then

    Text Solution

    |

  18. If g(1) and g(2) be the geometric means of two series of n(1) and n(2)...

    Text Solution

    |

  19. For a symmetrical distribution lower quartile is 20 and upper quartile...

    Text Solution

    |

  20. For a symmetrical distribution P(25) and P(75) are 30 and 70 respectiv...

    Text Solution

    |