Hi, just doing a past paper and came across this question on the normal distributions that I'm not too sure about.

$\displaystyle Z - N(0,1)$, find $\displaystyle z$ such that $\displaystyle P(|Z| < z) = 0.790$

Normally I'd have no problem using the inverse normal function in my tables, not I'm not sure what that modulus sign does to the question?

Thanks