Practise standard-normal intervals and two tails

Use normalcdf(−2.56,0.134,0,1) to obtain approximately 0.5480651046, so the answer is $\boxed{0.548}$ (3 s.f.). The ≤ endpoint has no effect on this continuous probability.

Use normalcdf(1.863,10^99,0,1) to obtain approximately 0.0312311331, giving $\boxed{0.0312}$ (3 s.f.).

The printed prompt has absolute-value bars: $|Z|>0.754$ means $Z<-0.754$ or $Z>0.754$. By symmetry,

$\begin{aligned}&P(|Z|>0.754)\\ & =2 P(Z>0.754)\\ & =2\left[1-\Phi(0.754)\right]\approx 0.4508492217.\end{aligned}$

Thus the answer is $\boxed{0.451}$ (3 s.f.). Equivalently subtract the interval probability between −0.754 and 0.754 from 1. The printed source gives the three short answers; the steps here explain them.