Question
Download Solution PDFयदि X पर Y की प्रतिक्रमण रेखा Y = 30 - 0.9X है और मानक विचलन Sx = 2 और Sy = 9 हैं, तो सहसंबंध गुणांक rxy का मान है:
Answer (Detailed Solution Below)
Detailed Solution
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X पर Y की प्रतिक्रमण रेखा Y = 30 - 0.9x है
⇒ Y - 30 = - 0.9x
X पर Y की प्रतिक्रमण समीकरण रेखा = y - y1 = r(sy/sx)(x - x1)
दोनों समीकरणों की तुलना करने पर, हमें प्राप्त
⇒ r(sy/sx) = -0.9
⇒ r(9/2) = -0.9
⇒ r = (-0/9 × 2)/9 = - 0.2
∴ सहसंबंध गुणांक rxy का मान -0.2 है।
Last updated on Jul 17, 2025
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