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NDA 2017
Exam
NDA
Year
2017
Subject
Mathematics
Chapter
Statistics

NDA 2017 · Mathematics · Statistics

If the data are moderately non-symmetrical, then which one of the...

If the data are moderately non-symmetrical, then which one of the following empirical relationships is correct?

Options

  1. A2×2 \times Standard deviation =5×=5 \times Mean deviation
  2. B5×5 \times Standard deviation =2×=2 \times Mean deviation
  3. C4×4 \times Standard deviation =5×=5 \times Mean deviation
  4. D5×5 \times Standard deviation =4×=4 \times Mean deviation

Correct answer

C. 4×4 \times Standard deviation =5×=5 \times Mean deviation

Step-by-step solution

We know, 45\frac{4}{5} standard deviation = Mean deviation ⇒4×\Rightarrow 4 \times standard deviation =5×=5 \times mean deviation
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