Mathematics · Statistics
Which of the following is NOT a mathematically correct formula for calculating the Standard Deviation (σ)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1σ = √[∑dx2N - (∑dxN)2]
- 2σ = 1N √[∑dx2 - (∑dx)2]✓
- 3σ = √[∑dx2N - (X̄ - A)2]
- 4σ = √[∑dx2 - N(X̄ - A)2N]
Correct answer
σ = 1N √[∑dx2 - (∑dx)2]
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