Question 1081964
z=(x-mean)/sd
z for the first is 0.  This is a continuous function, and the probability of selecting an exact value is 0. A range is another matter. 
the second is (13.1-13.2)/0.8=-0.125
and (13.6-13.2)/0.8=0.5
it is z between -0.125 and +0.5, and that probability is 0.2412.