PRC-2 · Chapter 12 · Question 43 of 55
The 'Standard Error' of the mean (σx̄) is mathematically defined as:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) σ / √n
Explanation
Standard error represents the standard deviation of the sampling distribution. It is calculated by dividing the population standard deviation by the square root of the sample size.
More Probability Distributions MCQs
- Q45What is the primary visual difference between 'Stratified Sampling' and 'Cluster Sampling'?
- Q46The mathematical difference between a population parameter (like μ) and its sample estimate (like x̄) is known as:
- Q47Which of the following is a 'Non-Probability' sampling method?
- Q48If you double your sample size (n), what happens to the Standard Error of the mean?
- Q49What is a 'Sampling Frame' in statistical research?