Question
Download Solution PDFयदि एक जनसंख्या में 10 इकाइयाँ हैं और SRSWOR (बिना शून्य के सरल यादृच्छिक नमूना-चयन) को अपनाया जाता है, तो 2 इकाइयों के एक निर्दिष्ट नमूने के चयन की प्रायिकता क्या होगी:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है
जनसंख्या N = 10
नमूने n = 2
अवधारणा
SRSWOR में नमूने के चयन की प्रायिकता 1/Ncn है
NCn = N!/n!(N - n)!
गणना
आवश्यक प्रायिकता 1/10c2 है
⇒ 1/(10!/(2!(10 -2)!
⇒ 10!/2!/8!
⇒ (8! × 2!)/10!
⇒ 1/45
∴ 2 इकाइयों के एक निर्दिष्ट नमूने के चयन की प्रायिकता 1/45 है
जब हम SRSWR के रूप में चयन करते हैं तो नमूने के चयन की प्रायिकता 1/Nn होती है
Last updated on Jul 22, 2025
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