Find the z value to the right of the mean so that
a. 54.78% of the area under the distribution curve lies to the left of it. 0.12 (TI: 0.1201)
b. 69.85% of the area under the distribution curve lies to the left of it. 0.52 (TI: 0.5201)
c. 88.10% of the area under the distribution curve lies to the left of it. 1.18