Examlex
Which of the following minerals is often lacking in the diets of older adults?
Questionnaires
Structured sets of questions designed to collect information from respondents for research purposes.
Statistical Inference
The process of drawing conclusions about a population based on sample data, using probability theory to estimate population parameters.
Probability Sampling
A sampling technique in which every member of the population has a known, non-zero chance of being selected.
Representative Sample
A subset of a population that accurately reflects the characteristics of the entire group, crucial for reliable research or data analysis.
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