An original specimen from which copies can be made for analysis.

A sample that is considered the main example or representative of a group.

एक नमूना जो एक समूह का मुख्य उदाहरण या प्रतिनिधि माना जाता है

English Usage: The primary sample of students was selected for the study due to their diverse backgrounds.

Hindi Usage: अध्ययन के लिए छात्रों का प्राथमिक नमूना उनके विविध पृष्ठभूमियों के कारण चुना गया।