Measures of Central Tendency and DispersionMCQPYQ Jan. 21Question 3219 of 473
All Questions

Which of the following is a relative measure of dispersion?

Options

ARange
BMean deviation
CStandard deviation
DCoefficient of quartile deviation
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Correct Answer

✅ Option d — Coefficient of quartile deviation

All Options:

  • ARange
  • BMean deviation
  • CStandard deviation
  • DCoefficient of quartile deviation

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Detailed Solution & Explanation

Measures of dispersion are divided into absolute measures and relative measures. Absolute measures (like Range, Mean Deviation, and Standard Deviation) have units, whereas relative measures (like Coefficient of Range, Coefficient of Variation, and Coefficient of Quartile Deviation) are unitless ratios. Therefore, the Coefficient of Quartile Deviation is a relative measure of dispersion. Hence, **Option D** is the correct answer.

About This Chapter: Measures of Central Tendency and Dispersion

Paper

Paper 3: Quantitative Aptitude

Weightage

12-15 Marks

Key Topics

Mean, Median, Mode, Range, Mean Deviation, Standard Deviation

The core foundation of Statistics. This chapter covers Mean (Arithmetic, Geometric, Harmonic), Median, Mode, and their properties. It also explores measures of spread like Range, Mean Deviation, Standard Deviation, and Quartile Deviation.

View Official ICAI Syllabus

Exam Strategy Tip

Do not just memorize formulas; ICAI loves asking about the mathematical properties (e.g., 'sum of deviations from the AM is always zero'). You can usually eliminate 2 options just by knowing the properties.

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