Question 951194
Find the z score for both times,
{{{z[1]=(41-41)/12=0}}}
{{{z[2]=(61-41)/12=1.67}}}
Then the probability would be,
{{{P=P(z[2])-P(z[1])}}}
{{{P=0.95221-0.5}}}
{{{P=0.452}}}