We have a standard distribution curve, and we need to find the area of the shaded region, which is given by:
[tex]P(-0.90This can be rewritten as the expression:[tex]\begin{gathered} P(-0.90In a standard normal table, we find the following values:[tex]\begin{gathered} P(z<1.60)=0.9452 \\ P(z<0.90)=0.8159 \\ 1-P(z<0.90)=1-0.8159=0.1841 \end{gathered}[/tex]
If we replace these values into the expression we obtain:
[tex]P(-0.90
The area of the shaded region is 0.7611
