Question 948849
How do you have two answers?
You should only have 1.
Find the z score for both points.
{{{z=(x-mu)/sigma}}}
{{{z[1]=(375-500)/50=-2.5}}}
{{{z[2]=(590-500)/50=1.8}}}
So then,
{{{P=P(z[2])-P(z[1])}}}
{{{P=0.96407-0.00621}}}
{{{P=0.95786}}}