Home
Class 12
MATHS
If the mean deviation about the median o...

If the mean deviation about the median of the numbers a, 2a,……., 50a is 50, then `|a|` equals

A

4

B

5

C

2

D

3

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    NEW JOYTHI PUBLICATION|Exercise EXSERCISE|34 Videos

  • SETS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|21 Videos

  • STRAIGHT LINES

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|122 Videos

Similar Questions

Explore conceptually related problems

Find the mean deviation about the median for the data

Find the mean deviation about the mean for the data

Find the mean deviation about median for the following data

Find the mean deviation about the mean for the data in 4, 7, 8, 9, 10, 12, 13, 17

Find the mean deviation about the median for the data in 36, 72, 46, 42, 60, 45, 53, 46, 51, 49

The mean deviation of the first 19 natural numbers about the median is

If the mean deviation of number 1,1+d, 1+2d,…., 1+100d from their mean is 255, then d is equal to

Find the mean deviation about the median for the data (i) Find median. (ii) Hence find mean deviation from the median.

Find the mean deviation about the median for the following data: 3, 9, 5, 3, 12, 10, 18, 4, 7, 19, 21.

Find the mean deviation about the mean for the following data: 6, 7, 10, 12, 13, 4, 8, 12

NEW JOYTHI PUBLICATION-STATISTICS-QUESTIONS FROM COMPETITIVE EXAMS
  1. The mean of five numbers is 0 and their variance is 2. If three of tho...

    Text Solution

    |

  2. A batsman in his 16^(th) innings makes a score of 70 runs and thereby ...

    Text Solution

    |

  3. If the variance of 1,2,3,4,5,….., x is 10, then the value of x is

    Text Solution

    |

  4. Mean of 10 observations is 50 and their standard deviation is 10 If e...

    Text Solution

    |

  5. If sum(i=1)^(9)(x(i)-5)=9andsum(i=1)^(9)(x(i)-5)^(2)=45, then the sta...

    Text Solution

    |

  6. The standard deviation of 9,16,23,30,37,44,51 is

    Text Solution

    |

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

    Text Solution

    |

  8. In an experiment with 15 observation on x, the following results were...

    Text Solution

    |

  9. The median of a set of a set of 9 distinct observations is 20.5 . If e...

    Text Solution

    |

  10. Consider the following statements. (i) Mode can be computed from hi...

    Text Solution

    |

  11. In a series of 2n observations , half of them equal a and remaining ha...

    Text Solution

    |

  12. In a frequency distribution , the mean and median are 21 and 22 respec...

    Text Solution

    |

  13. Let x(1),x(2),…..x(n) be n observations such that sumx(i)^(2)=400andsu...

    Text Solution

    |

  14. Suppose a population A has 100 observations 101,102,….,200, and anothe...

    Text Solution

    |

  15. The average marks of boys in a class is 52 and that of girls is 42. .T...

    Text Solution

    |

  16. The mean of the numbers a,b,8,5,10 is 6 and the variance is 6.80 .Then...

    Text Solution

    |

  17. If the mean deviation of number 1,1+d, 1+2d,…., 1+100d from their mean...

    Text Solution

    |

  18. For two data sets , each of size 5, the variances are given to be 4 an...

    Text Solution

    |

  19. If the mean deviation about the median of the numbers a, 2a,……., 50a i...

    Text Solution

    |

  20. Let x(1),x(2),…..x(n) be n observations such that sumx(i)^(2)=400andsu...

    Text Solution

    |