Given R$-$squared $=0\mathrm{.}9739,$ select the correct value of the correlation coefficient, r$,$ between the porosity and unit weight?

Group of answer choices

Not enough information is given.

$0\mathrm{.}9869$

$-0\mathrm{.}9485$

$0\mathrm{.}9739$

$-0\mathrm{.}9869$

$-0\mathrm{.}9739$

$0\mathrm{.}9485$