A sampling distribution might be based on which of the following?

A sampling distribution might be based on which of the following? Options: (a) Sample means (b) Sample correlations (c) Sample proportions (d) All above ✅ Correct Option: (d) All above Explanation (200+ words): A sampling distribution can be constructed for any statistic, including means, correlations, and proportions. It represents the distribution of a statistic across repeated samples. 10 PPSC-Related Facts: 1. Sampling distribution is theoretical 2. Based on repeated sampling 3. Applies to many statistics 4. Mean is most common 5. Proportions are used 6. Correlations can be sampled 7. Central limit theorem applies 8. Used in inference 9. Basis of standard error 10. Key statistical concept

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A is a numerical characteristic of a sample and a is a numerical characteristic of a population.
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As a general rule, researchers tend to use percent confidence intervals.