Question 326267
Find the z score.
{{{z=(x-mu)/sigma=(90-82)/4.2}}}
{{{z=1.905}}}
{{{P(z)=0.9716}}}
That P value is for {{{x<=90}}}.
Subtract from 1 to find {{{x>90}}}
{{{P=1-0.9716}}}
{{{highlight(P=0.0284)}}}