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प्रश्न
The correlation coefficient
विकल्प
r = `± sqrt("b"_"xy" xx "b"_"yx")`
r = `1/("b"_"xy" xx "b"_"yx")`
r = bxy × byx
r = `± sqrt(1/("b"_"xy" xx "b"_"yx")`
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उत्तर
r = `± sqrt("b"_"xy" xx "b"_"yx")`
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