SD of x̄ for an SRS of size n from a population with SD σ is
- Acheck_circle
σ/√n
- B
σ/n
- C
σ²
- D
σ
Explanation
Standard error of the mean: σ_x̄ = σ/√n.
Sampling Distributions for Sample Means
AP Statistics· difficulty 3/5
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