Which is correct and most complete?

a. If X is N(10, 3), then Z = (X – 10) ÷ 3 is N(0,1).

b. If X is triangular with parameter a = 10, b = 11, and c = 14, then Z =

(X – 10) ÷ 4 is triangular with parameters a = 0, b = 0.2, and c = 2.

c. If X is N(10, 3), then Pr{X > 13} = 0.259 (within implied uncertainty).

d. All of the above are correct.

e. All of the above are correct except parts

(a) and (d).