Which one of the following formulas is used to calculate the standard error of coefficient of correlation between 25 paired observations of a sample?

A. $$\frac{{\left( {1 - {r^2}} \right)}}{{\sqrt n }}$$

B. $$\sqrt {\frac{{\left( {1 - {r^2}} \right)}}{{\left( {n - 2} \right)}}} $$

C. $$0.6745\left( {\frac{{1 - {r^2}}}{{\sqrt n }}} \right)$$

D. $$\sqrt {\frac{{\left( {n - 2} \right)}}{{\left( {1 - {r^2}} \right)}}} $$

Answer: Option A