Sample analysis is the process of examining a small portion of a larger group to draw conclusions about the entire group. This method is commonly used in various fields, such as science, market research, and quality control. By studying a representative sample, researchers can identify trends, patterns, or characteristics without needing to analyze every single item. In sample analysis, the selection of the sample is crucial to ensure it accurately reflects the larger population. Techniques like random sampling or stratified sampling help minimize bias and improve the reliability of the results. The findings from the sample can then inform decisions or further investigations.