Question 1124627
z=(x-mean)/sd
z<(60-44)/6.1 or <2.62
a. probability z < 2.62 is 0.9956

>=50 is z>=(50-44)/6.1 or z>0.98
b. probability  of this is 0.1635

c. Between the two is z between 0.98 and 2.62 or 0.1591