The probable error of the coefficient of correlation (r) is calculated – McqOptions

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1.	The probable error of the coefficient of correlation (r) is calculated by which one of the following formulae?
A.	\(0.6745\;\sqrt {\frac{{1 - {r^2}}}{n}} \)
B.	\(0.6745\frac{{\left( {1 - {r^2}} \right)}}{{\sqrt n }}\)
C.	\(0.6745\frac{{1 + {r^2}}}{{\sqrt n }}\)
D.	\(0.6745\frac{{\left( {1 + {r^2}} \right)}}{n}\)
Answer» C. \(0.6745\frac{{1 + {r^2}}}{{\sqrt n }}\)

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