Which probability model is most appropriate to describe the waiting time (working days) until an office photocopier breaks down (i.e., requires unscheduled maintenance)?
A)Normal
B)Uniform
C)Exponential
D)Poisson

Question

Quizplus · Accepted Answer

The waiting time until a photocopier breaks down is a continuous probability distribution and the Exponential distribution is the most appropriate for modeling continuous waiting time. The Exponential distribution has a constant failure rate (hazard rate) which is suitable for modeling the failure of machines. The other options listed (Normal, Uniform, Poisson) are not appropriate for modeling waiting times of a machine failure.

Which Probability Model Is Most Appropriate to Describe the Waiting