Stratified sampling

Stratified sampling is a method used in statistics to ensure that different groups within a population are properly represented in a sample. Imagine surveying students about their favorite subjects—if your school has 60% boys and 40% girls, a stratified sample would keep that same ratio, giving you more accurate results than a completely random selection. This technique is especially useful in research to avoid bias and make fair comparisons between different groups. Jump to the questions

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