Mathematics · Probability Distributions
The quartile deviation (QD) of a Normal Distribution with standard deviation σ is approximately equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11 4 σ
- 21 3 σ
- 32 3 σ✓
- 41 2 σ
Correct answer
2 3 σ
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