Mathematics · Statistics
Regarding the properties of Standard Deviation (SD), which of the following statements are CORRECT? (A) SD(X + a) = SD(X) for any constant a (SD is independent of change of origin) (B) SD(aX) = |a| · SD(X) for any constant a (SD is affected by change of scale) (C) SD is always non-negative (D) SD(X - a) ≠ SD(X) for a ≠ 0 Choose the correct answer:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A, B, C and D
- 2B and C only
- 3A and C only
- 4A, B and C only✓
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A, B and C only
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