PRC-2 · Chapter 12 · Question 48 of 55
If you double your sample size (n), what happens to the Standard Error of the mean?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) It decreases (shrinks).
Explanation
Since 'n' is in the denominator of the standard error formula (σ / √n), increasing the sample size mathematically reduces the standard error, making the estimate more precise.
More Probability Distributions MCQs
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