Question
Download Solution PDFदो चर राशियों X और Y के बीच सहसंबंध गुणांक 0.48 है। सहप्रसरण 36 है। X का प्रसरण 16 है। Y का मानक विचलन है:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है
σx = √16 = 4
r = 0.48
सहप्रसरण = ∑xy/N = 36
सूत्र
सहप्रसरण = ∑xy/N
r = ∑xy/N.σx × σy
गणना
प्रश्न के अनुसार
⇒ 0.48 = 36/4 × σy
⇒ σy = 9/0.48
∴ y(σy) का मानक विचलन 18.75 है।
Last updated on Jun 13, 2025
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