Mathematics · Sampling Distributions
If X1, X2, ..., Xn is a random sample from a normally distributed population with mean μ and variance σ2, then the sampling distribution of the sample mean X̅ is:
- 1Normal with mean μ and variance σ2
- 2Normal with mean μ and variance σ2/n2
- 3Normal with mean μ and variance σ2/n✓
- 4Non-normal with mean μ and variance σ2/n
Correct answer
Normal with mean μ and variance σ2/n
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