$($b$)$ The area between $-z$ and $z$ is $0\mathrm{.}9398.$

$($c$)$ The area between $-z$ and $z$ is $0\mathrm{.}2282.$

$($d$)$ The area to the left of $z^{\text{'}}$ is $0\mathrm{.}9949.$

$($e$)$ The area to the right of $z$ is $0\mathrm{.}6915.$