Measures Of Dispersion CBSE Questions & Answers

Measures Of Dispersion

This is Economics Class 11 Measures of Dispersion CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
There is difference or variation among the values. The degree of variation is evaluated by various measures of
  • A
    Dispersion
  • B
    None
  • C
    Central tendency
    Correct
  • D
    Both
2
A good dispersion should have following characteristics except
  • A
    It should be rigidly defined
  • B
    It should be simple to understand
  • C
    It should be based on extreme values
    Correct
  • D
    It should lend itself for algebraic manipulation
3
There are two types of dispersion
  • A
    Absolute measure of dispersion and Relative measure of dispersion
    Correct
  • B
    Real measure of dispersion and Relative measure of dispersion
  • C
    Nominal measure of dispersion and Relative measure of dispersion
  • D
    Nominal measure of dispersion and Real measure of dispersion
4
Following are the Relative measures of dispersion except
  • A
    Co-efficient of Range
  • B
    Standard deviation
    Correct
  • C
    Co-efficient of Quartile deviation
  • D
    Co-efficient of Mean deviation
5
Half of the difference between the first and third quartiles
  • A
    Q1
  • B
    Q.D
    Correct
  • C
    Median
  • D
    Q3
6
Standard deviation is also called
  • A
    Mean Deviation
  • B
    Square Deviation
  • C
    Root-Mean Square Deviation
    Correct
  • D
    Mean Square Deviation
7
Square of standard deviation is called
  • A
    Mean Square Deviation
  • B
    Variance
    Correct
  • C
    Square Deviation
  • D
    Root-Mean Square Deviation
8
the positive square-root of the arithmetic mean of the Square of the deviations of the given observation from their arithmetic mean is called
  • A
    Mean deviation
  • B
    Quartile deviation
  • C
    Variance
  • D
    Standard deviation
    Correct
9
The average of the squared deviations from the arithmetic mean is called the
  • A
    Variance
    Correct
  • B
    Mean deviation
  • C
    Standard deviation
  • D
    Quartile deviation
10
Formula given below is used to calculate
Question 10 figure 1
  • A
    Mean deviation
  • B
    Variance
  • C
    Standard deviation
    Correct
  • D
    Quartile deviation
11
Absolute measures of dispersion are
  • A
    Both
  • B
    None
  • C
    Expressed in ratios or percentage, also known as coefficients of dispersion.
  • D
    Expressed in terms of original unit of series
    Correct
12
Quartile deviation is calculated by
  • A
    \(\frac{{{Q_{3{\text{ }}}} - {Q_1}}}{2}\)
    Correct
  • B
    \(\frac{{{Q_{3{\text{ }}}} + {Q_2}}}{2}\)
  • C
    \(\frac{{{Q_{3{\text{ }}}} - {Q_2}}}{2}\)
  • D
    \(\frac{{{Q_{3{\text{ }}}} + {Q_2}}}{3}\)
13
The main disadvantage of the standard deviation is
  • A
    It is a sensitive measure of dispersion
  • B
    It takes into account all the values in the data set
  • C
    It is used in many other statistical techniques
  • D
    It is difficult to calculate by hand
    Correct
14
The variance
  • A
    Cannot be calculated on continuous data
  • B
    Involves squaring deviation scores and then dividing them together
  • C
    Produces small values in square units due to taking the square root of deviations
  • D
    Should be adjusted when we want to generalize from a sample to a population
    Correct
15
The inter quartile range
  • A
    Is representative of the middle 50% of values in the data set
    Correct
  • B
    Can be calculated by subtracting the median from the fourth quartile
  • C
    Relies on four values and therefore does not provide a measure of dispersion
  • D
    Is normally used when the measure of central tendency is the mode