Answer:
Correct choice is C
Step-by-step explanation:
For the normal distribution ([tex]Z\sim N(0,1)[/tex]) the probability that a z score is between -0.85 and 1.15 is
[tex]Pr(-0.85<z<1.15)=Pr(z<1.15)-Pr(z<-0.85).[/tex]
According to the normal distribution table:
[tex]Pr(z<1.15)=0.8749,\\ \\Pr(z<-0.85)=1-Pr(z>0.85)=1-0.8023=0.1977,[/tex]
then
[tex]Pr(-0.85<z<1.15)=Pr(z<1.15)-Pr(z<-0.85)=0.8749-0.1977=0.6772.[/tex]
