You are setting up a simulation to analyze the process of students waiting in line for the 3-D printer at the campus library. Which probability distributions are most likely to realistically describe the student arrival rate and the printing time?
a. Exponential distribution for the student arrival rate and a normal distribution for the printing time.
b. Exponential distributions for both the student arrival rate and the printing time.
c. Normal distribution for the student arrival rate and uniform distribution for the printing time.
d. Poisson distribution for the student arrival rate and exponential distribution for the printing time.
e. Exponential distribution for the student arrival rate and Poisson distribution for the printing time.