Measures Of Central Tendency And Dispersion

20 Questions | Total Attempts: 1369

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Measurement Quizzes & Trivia

Questions and Answers
  • 1. 
    Measures of central tendency for a given set of observations measures  
    • A. 

      The scatterness of the observations

    • B. 

      The central location of the observations

    • C. 

      Both (i) and (ii)

    • D. 

      None of these.

  • 2. 
    While computing the AM from a grouped frequency distribution, we assume that 
    • A. 

      The classes are of equal length

    • B. 

      The classes have equal frequency

    • C. 

      All the values of a class are equal to the mid-value of that class

    • D. 

      None of these.

  • 3. 
    Which of the following statements is wrong?
    • A. 

      Mean is rigidly defined

    • B. 

      Mean is not affected due to sampling fluctuations Ensues

    • C. 

      Mean has some mathematical properties

    • D. 

      All these

  • 4. 
    Which of the following statements is true?
    • A. 

      Usually mean is the best measure of central tendency

    • B. 

      Usually median is the best measure'of central tendency

    • C. 

      Usually mode is the best measure of central tendency

    • D. 

      Normally, GM is the best measure of central tendency

  • 5. 
    For open-end classification, which of the following is the best measure of central tendency?
    • A. 

      AM

    • B. 

      GM

    • C. 

      Median

    • D. 

      Mode

  • 6. 
    The presence of extreme observations does not affect
    • A. 

      AM

    • B. 

      Median

    • C. 

      Mode

    • D. 

      Any of these.

  • 7. 
    In case of an even number of observations which of the following is median ?
    • A. 

      Any of the two middle-most value

    • B. 

      The simple average of these two middle values

    • C. 

      The weighted average of these two middle values

    • D. 

      Any of these

  • 8. 
    The most commonly used measure of central tendency is 
    • A. 

      AM

    • B. 

      Median

    • C. 

      Mode

    • D. 

      Both GM and HM

  • 9. 
    Which one of the following is not uniquely defined?
    • A. 

      Mean

    • B. 

      Median

    • C. 

      Mode

    • D. 

      All of these measures

  • 10. 
    Which of the following measure of the central tendency is difficult to compute? 
    • A. 

      Mean

    • B. 

      Median

    • C. 

      Mode

    • D. 

      Gm

  • 11. 
    Which measure(s) of central tendency is(are) considered for finding the average rates: 
    • A. 

      AM

    • B. 

      GM

    • C. 

      HM

    • D. 

      Both (ii)and(iii)

  • 12. 
    For a moderately skewed distribution, which of he following relationship holds?
    • A. 

      Mean - Mode = 3 (Mean - Median)

    • B. 

      Median - Mode = 3 (Mean - Median)

    • C. 

      Mean - Median = 3 (Mean - Mode)

    • D. 

      Mean - Median = 3 (Median - Mode)

  • 13. 
    Weighted averages are considered when
    • A. 

      The data are not classified

    • B. 

      The data are put in the form of grouped frequency distribution

    • C. 

      All the observations are not of equal importance

    • D. 

      Both (i) and (iii).

  • 14. 
     Which of the following results hold for a set of distinct positive observations? 
    • A. 

      AM >= GM >= HM

    • B. 

      HM >= GM >= AM

    • C. 

      AM > GM > HM

    • D. 

      GM > AM > HM

  • 15. 
    When a firm registers both profits and losses, which of the following measure of central tendency cannot be considered?
    • A. 

      AM

    • B. 

      GM

    • C. 

      Median

    • D. 

      Mode

  • 16. 
    Quartiles are the values dividing a given set of observations into
    • A. 

      Two equal parts

    • B. 

      Four equal parts

    • C. 

      Five equal parts

    • D. 

      None of these

  • 17. 
    Quartiles can be determined graphically using
    • A. 

      Histogram

    • B. 

      Frequency Polygon

    • C. 

      Ogive

    • D. 

      Pie chart

  • 18. 
    Which of the following measure(s) possesses (possess) mathematical properties?
    • A. 

      AM

    • B. 

      GM

    • C. 

      HM

    • D. 

      All of these

  • 19. 
    Which of the following measure(s) satisfies (satisfy) a linear relationship between two variables?
    • A. 

      Mean

    • B. 

      Median

    • C. 

      Mode

    • D. 

      All of these

  • 20. 
    Which of he following measures of central tendency is based on only fifty percent of the central values?
    • A. 

      Mean

    • B. 

      Median

    • C. 

      Mode

    • D. 

      Both (i) and(ii)

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