JEE Questions for Maths Statistics Quiz 10 - MCQExams.com

The A.M. of 9 terms is 15. If one more term is added to this series then the A.M. becomes 16. The value of the added term is
  • 30
  • 27
  • 25
  • 23
  • 20
Which one of the following measures of marks is the most suitable one of central location for computing intelligence of students
  • Mode
  • Arithmetic mean
  • Geometric mean
  • Median
The central value of the set of observations is called
  • Mean
  • Median
  • Mode
  • G.M.
For a frequency distribution 7th decile is computed by the formula

  • Maths-Statistics-51237.png
  • 2)
    Maths-Statistics-51238.png

  • Maths-Statistics-51239.png

  • Maths-Statistics-51240.png
Which of the following in case of a discrete data, is not equal to the median?
  • 50th percentile
  • 5th decile
  • 2nd quartile
  • Lower quartile
The median of 10, 14, 11, 9, 8, 12, 6 is
  • 10
  • 12
  • 14
  • 11

Maths-Statistics-51242.png

  • Maths-Statistics-51243.png
  • 2)
    Maths-Statistics-51244.png

  • Maths-Statistics-51245.png
  • None of these

Maths-Statistics-51246.png
  • 20
  • 25
  • 35
  • None of these

Maths-Statistics-51248.png

  • Maths-Statistics-51249.png
  • 2)
    Maths-Statistics-51250.png

  • Maths-Statistics-51251.png

  • Maths-Statistics-51252.png

Maths-Statistics-51254.png

  • Maths-Statistics-51255.png
  • 2)
    Maths-Statistics-51256.png

  • Maths-Statistics-51257.png

  • Maths-Statistics-51258.png
The median of a set of 9 distinct observations is 20.5. If each of the largest 4 observation of the set is increased by 2, then the median of the new set
  • Is increased by 2
  • Is decreased by 2
  • Is two times the original median
  • Remains the same as that of the original set
For a continuous series the mode is computed by the formula

  • Maths-Statistics-51261.png
  • 2)
    Maths-Statistics-51262.png

  • Maths-Statistics-51263.png

  • Maths-Statistics-51264.png
Consider the following statements
(Mode can be computed from histogram
(Median is not independent of change of scale
(Variance is independent of change of origin and scale
Which of these is/are correct?
  • (1), (and (
  • Only (2)
  • Only (and (2)
  • Only (1)

Maths-Statistics-51265.png
  • 24
  • 32
  • 8
  • 16
  • 40

Maths-Statistics-51267.png
  • 5
  • 6
  • 8
  • 10
Mode of 7, 6, 10, 7, 5, 9, 3, 7, 5 is
  • 6
  • 3
  • 5
  • 7
If mean = (3 median – mode) k, then the value of
  • 1
  • 2
  • 1/2
  • 3/2
If in a frequency distribution, the mean and median are 21 and 22 respectively, then its mode is approximately
  • 25.5
  • 24.0
  • 22.0
  • 20.5
If in a moderately asymmetrical distribution mode and mean of the data are 6λ and 9 λ respectively, then median is
  • 8 λ
  • 7 λ
  • 6 λ
  • 5 λ
Which of the following is not a measure of central tendency?
  • Mean
  • Median
  • Mode
  • Range
The most stable measure of central tendency is
  • Mean
  • Median
  • Mode
  • None of these
Which of the following average is most affected of extreme observations?
  • Mode
  • Median
  • Arithmetic mean
  • Geometric mean
The following data was collected from the newspaper (percentage distribution)
Maths-Statistics-51272.png
  • Data given in text form
  • Data given in diagrammatic form
  • Primary data
  • Secondary data
The mortality in a town during 4 quarters of a year due to various causes is given below : Based on this data, the percentage increase in mortality in the third quarter is
Maths-Statistics-51273.png
  • 40
  • 50
  • 60
  • 75
A market with 3900 operating firms has the following distribution for firms arranged according to various income groups of workers
Maths-Statistics-51275.png
  • 500-800
  • 1200-1800
  • 800-1200
  • 150-300
The total expenditure incurred by an industry under different heads is best presented as a
  • Bar diagram
  • Pie diagram
  • Histogram
  • Frequency polygon
The expenditure of a family for a certain month were as follows :
Food – Rs. 560, Rent – Rs. 420, Clothes – Rs. 180,
Education – Rs. 160, Other items – Rs. 120
A pie graph representing this data would show the expenditure for clothes by a sector whose angle equals
  • 180°
  • 90°
  • 45°
  • 64°
Section-wise expenditure of a State Govt. is shown in the given figure. The expenditure incurred on transport is
Maths-Statistics-51277.png
  • 25%
  • 30%
  • 32%
  • 35%
Relation between mean, median and mode of moderately skewed distribution is
  • Mode = median – mean
  • Mode = 3 median – 2 arithmetic mean
  • Median = 3 mode + 2 mean
  • Mode = 3 median + 2 arithmetic mean
The measure of dispersion is
  • Mean deviation
  • S.D.
  • Quartile deviation
  • All of these
0:0:1


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