Answer:
The correct answer is "0.9332".
Step-by-step explanation:
Given that:
[tex]\mu=12.30[/tex]
[tex]\sigma=0.20[/tex]
So,
= [tex]P(X>12)[/tex]
= [tex]1-P(X<12)[/tex]
= [tex]1-P(\frac{X-\mu}{\sigma} < \frac{12-12.30}{0.20} )[/tex]
= [tex]1-P(Z<-\frac{0.3}{0.20} )[/tex]
= [tex]1-P(Z<-1.5)[/tex]
= [tex]1-0.0668[/tex]
= [tex]0.9332[/tex]