Consider the particle$-$in$-$a$-$box problem with a box length of $4\mathrm{.}4E-9m.$ For the $n=2$ energy level, give one distance from the edge of the box with $x=0m$ is probability of finding the particle maximized? Give your answer to two significant figures.

Hint: Sketch the wavefunction. At what points is ${}^2$ maximized?

$x=$ m