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Central Tendency and Dispersion (CA - CPT)

Chapter 11: Central tendency and Dispersion

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

The middlemost value when the observations are arranged in order of magnitude is called

  1. range
  2. standard deviation
  3. mean
  4. median
  5. mode
Question 2 Multiple Choice (Single Answer)

Which of the following statements is true?

  1. Mode is based on all the observations.
  2. Median is the second quartile.
  3. Mean is the mid value.
  4. Mode is the 5th decile.
  5. Median is the most repeated value.
Question 3 Multiple Choice (Single Answer)

The value(s) that can be determined graphically is/are

  1. median
  2. mode
  3. median and mode
  4. mean and median
  5. mean, median and mode
Question 4 Multiple Choice (Single Answer)

______________ divide(s) the given set of observations into four equal parts.

  1. Median
  2. Deciles
  3. Percentiles
  4. Mode
  5. Quartiles
Question 5 Multiple Choice (Single Answer)

Standard deviation is ______________ of change of origin, but _____________ on change of scale.

  1. independent, dependent
  2. dependent, dependent
  3. dependent, independent
  4. independent, independent
  5. None of these
Question 6 Multiple Choice (Single Answer)

Which of the following measures of dispersion can be used for comparing variability of two distributions?

  1. Range
  2. Mean deviation
  3. Coeffecient of variation
  4. Standard deviation
  5. Quartile deviation
Question 7 Multiple Choice (Single Answer)

The sum of squares of deviations of a set of observations has the smallest valu, when the deviations are taken from their

  1. arithmetic mean
  2. geometric mean
  3. harmonic mean
  4. median
  5. mode
Question 8 Multiple Choice (Single Answer)

Which of the following is/are a mathematical average?

  1. Median
  2. Quartiles
  3. Mode
  4. Geometric mean
  5. Deciles
Question 9 Multiple Choice (Single Answer)

Which of the following is/are called ratio average(s)?

  1. GM
  2. AM
  3. AM and GM
  4. AM and HM
  5. GM and HM
Question 10 Multiple Choice (Single Answer)

Which of the following holds for a set of distinct positive observations?

  1. H.M. ≤ G.M. ≤ A.M.
  2. H.M. < G.M. < A.M.
  3. H.M. ≤ A.M. ≤ G.M.
  4. H.M. < A.M. < G.M.
  5. H.M. > G.M. > A.M.
Question 11 Multiple Choice (Single Answer)

If all observations of a distribution are increased by 10, then the standard deviatiobn of the series will be

  1. increased by 10
  2. decreased by 10
  3. increased by 20
  4. increased by 5
  5. unchanged
Question 12 Multiple Choice (Single Answer)

The sum of deviations of a set of observations is zero when the deviations are taken from their

  1. arithmetic mean
  2. median
  3. mode
  4. geometric mean
  5. harmonic mean
Question 13 Multiple Choice (Single Answer)

The mean and standard deviation of 10 observations are 45 and 3, respectively. If each observation is increased by 4, the respective changed mean and standard deviation will be

  1. 45 and 3
  2. 41 and 3
  3. 49 and 3
  4. 45 and 7
  5. 49 and 7
Question 14 Multiple Choice (Single Answer)

The standard deviation of which of the following pairs of numbers is the highest?

  1. 10, 20
  2. 100, 300
  3. 80, 100
  4. 750, 800
  5. 1000, 1100
Question 15 Multiple Choice (Single Answer)

Quartile deviation is _______ inter-quartile range.

  1. half of
  2. double of
  3. triple of
  4. equal to
  5. one-third of
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