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NDA 2021
Exam
NDA
Year
2021
Subject
Mathematics
Chapter
Statistics

NDA 2021 · Mathematics · Statistics

When the measure of central tendency is available in the form of...

When the measure of central tendency is available in the form of mean, which one of the following is the most reliable and accurate measure of variability?

Options

  1. ARange
  2. BMean deviation
  3. CStandard deviation
  4. DQuartile deviation

Correct answer

C. Standard deviation

Step-by-step solution

∴\therefore Coefficient of variation (C.V.) =S.D mean ×100=\frac{S. D}{\text{ mean }} \times 100 We know that the series having greater C.V. is said to be more variable.
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