Teaching EMRS PGT Mock Test 2023 Mathematics Statistics Correlation and Regression

यदि n = 10, ∑x = 4, ∑y = 3, ∑x2 = 8, ∑y2 = 9 और ∑xy = 3 है, तो सहसंबंध का गुणांक ______ है। 

1
\(\frac{1}{4}\)
2
\(\frac{7}{12}\)
3
\(\frac{15}{4}\)
4
\(\frac{14}{3}\)
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