JEE Questions for Maths Statistics Quiz 11 - MCQExams.com

The mean deviation from the median is
  • Greater than that measured from any other value
  • Less than that measured from any other value
  • Equal to that measured from any other value
  • Maximum if all observations are positive

Maths-Statistics-51280.png
  • 2
  • 3
  • 4
  • 5
The variance of the data 2,4, 6, 8, 10 is
  • 6
  • 7
  • 8
  • None of these
The variance of the binomial distribution is

  • Maths-Statistics-51283.png
  • 2)
    Maths-Statistics-51284.png

  • Maths-Statistics-51285.png

  • Maths-Statistics-51286.png

Maths-Statistics-51287.png

  • Maths-Statistics-51288.png
  • 2)
    Maths-Statistics-51289.png

  • Maths-Statistics-51290.png

  • Maths-Statistics-51291.png

Maths-Statistics-51292.png

  • Maths-Statistics-51293.png
  • 2)
    Maths-Statistics-51294.png

  • Maths-Statistics-51295.png

  • Maths-Statistics-51296.png
For a frequency distribution mean deviation from mean is computed by

  • Maths-Statistics-51297.png
  • 2)
    Maths-Statistics-51298.png

  • Maths-Statistics-51299.png

  • Maths-Statistics-51300.png
Quartile deviation for a frequency distribution is

  • Maths-Statistics-51301.png
  • 2)
    Maths-Statistics-51302.png

  • Maths-Statistics-51303.png

  • Maths-Statistics-51304.png
The variance of the first n natural numbers is

  • Maths-Statistics-51305.png
  • 2)
    Maths-Statistics-51306.png

  • Maths-Statistics-51307.png

  • Maths-Statistics-51308.png
For a moderately skewed distribution, quartile deviation and the standard deviation are related by

  • Maths-Statistics-51310.png
  • 2)
    Maths-Statistics-51311.png

  • Maths-Statistics-51312.png

  • Maths-Statistics-51313.png
For a frequency distribution standard deviation is computed by applying the formula

  • Maths-Statistics-51314.png
  • 2)
    Maths-Statistics-51315.png

  • Maths-Statistics-51316.png

  • Maths-Statistics-51317.png
For a frequency distribution, standard deviation is computed by

  • Maths-Statistics-51318.png
  • 2)
    Maths-Statistics-51319.png

  • Maths-Statistics-51320.png

  • Maths-Statistics-51321.png
If Q.D. is 16, the most likely value of S.D. will be
  • 24
  • 42
  • 10
  • None of these
If M.D. is 12, the value of S.D. will be
  • 15
  • 12
  • 24
  • None of these
The range of following set of observations 2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3 is
  • 11
  • 7
  • 5.5
  • 6

Maths-Statistics-51325.png

  • Maths-Statistics-51326.png
  • 2)
    Maths-Statistics-51327.png

  • Maths-Statistics-51328.png

  • Maths-Statistics-51329.png

Maths-Statistics-51330.png

  • Maths-Statistics-51331.png
  • 2)
    Maths-Statistics-51332.png

  • Maths-Statistics-51333.png

  • Maths-Statistics-51334.png
For a given distribution of marks mean is 35.16 and its standard deviation is 19.76. The coefficient of variation is

  • Maths-Statistics-51335.png
  • 2)
    Maths-Statistics-51336.png

  • Maths-Statistics-51337.png

  • Maths-Statistics-51338.png
If 25% of the item are less than 20 and 25% are more than 40, the quartile deviation is
  • 20
  • 30
  • 40
  • 10
For a normal curve, the greatest ordinate is

  • Maths-Statistics-51341.png
  • 2)
    Maths-Statistics-51342.png

  • Maths-Statistics-51343.png

  • Maths-Statistics-51344.png

Maths-Statistics-51345.png
  • 1
  • 2)
    Maths-Statistics-51346.png

  • Maths-Statistics-51347.png

  • Maths-Statistics-51348.png
The mean deviation from the mean for the set of observations –1, 0, 4 is

  • Maths-Statistics-51350.png
  • 2

  • Maths-Statistics-51351.png
  • None of these
The standard deviation of the numbers 31, 32, 33, ……,46, 47 is

  • Maths-Statistics-51353.png
  • 2)
    Maths-Statistics-51354.png

  • Maths-Statistics-51355.png

  • Maths-Statistics-51356.png
  • 12
If the coefficient of variation of a distribution is 45% and the mean is 12, then its standard deviation is
  • 5.2
  • 5.3
  • 5.4
  • None of these
The S.D. of 15 items is 6 and if each item is decreased or increased by 1, then standard deviation will be
  • 5
  • 7
  • 91/15
  • 6

Maths-Statistics-51359.png
  • 0
  • 2)
    Maths-Statistics-51360.png

  • Maths-Statistics-51361.png
  • 1
The sum of squares of deviations for 10 observations taken from mean 50 is 250. The coefficient of variation is
  • 50%
  • 10%
  • 40%
  • None of these
The means of five observations is 4 and their variance is 5.2. If three of these observations are 1, 2 and 6, then the other two are
  • 2 and 9
  • 3 and 8
  • 4 and 7
  • 5 and 6

Maths-Statistics-51365.png

  • Maths-Statistics-51366.png
  • 2)
    Maths-Statistics-51367.png

  • Maths-Statistics-51368.png

  • Maths-Statistics-51369.png

Maths-Statistics-51371.png
  • S.D. < M.D.
  • S.D. > M.D.
  • S.D. = M.D.
  • Nothing can be said in general about the relationship of S.D. and M.D.
0:0:1


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