Question
Download Solution PDFएक द्विपद बंटन में, यदि माध्य 6 है और मानक विचलन √2 है, तो क्रमशः प्राचल n और p के मान क्या हैं?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFव्याख्या:
दिया गया है:
⇒ माध्य x = np = 6....(i)
⇒ मानक विचलन = \(\sqrt{npq} = \sqrt2\)...(ii)
(ii) को (i) से विभाजित करने पर, हमें प्राप्त होता है
⇒ \(\frac{npq}{np} = \frac{2}{6}\)
⇒ q= 1/3
अब
⇒ p = 1 - q = 1- 1/3 = 2/3
(i) से
⇒\(n\times \frac{2}{3} = 6\)
⇒n =9
∴ विकल्प (d) सही है।
Last updated on May 30, 2025
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