In Fred's maintenance example, probability analysis helps determine:

In Fred's maintenance example, probability analysis helps determine:

• A. When to replace equipment
• B. When to schedule routine maintenance
• C. Which equipment is likely to cause bodily injury to operators or customers
• D. What type of equipment is needed for future projects

Answer: (A)

Probability analysis in maintenance focuses on when to replace equipment by weighing the chance of failure against the costs of keeping it in service. In Fred's maintenance example, this approach uses the likelihood of failure over time and the related costs—down time, repairs, safety risk, and disruption—to compare continuing to operate a unit with repairing it versus replacing it now. The aim is to minimize expected total cost over the asset’s life, so you replace when the cost of keeping the equipment running plus potential failure risks outweighs the upfront replacement cost. Other options—scheduling routine maintenance, assessing injury risk, or choosing equipment for future projects—rely on different decision criteria, not the timing of replacement.

Probability analysis in maintenance focuses on when to replace equipment by weighing the chance of failure against the costs of keeping it in service. In Fred's maintenance example, this approach uses the likelihood of failure over time and the related costs—down time, repairs, safety risk, and disruption—to compare continuing to operate a unit with repairing it versus replacing it now. The aim is to minimize expected total cost over the asset’s life, so you replace when the cost of keeping the equipment running plus potential failure risks outweighs the upfront replacement cost. Other options—scheduling routine maintenance, assessing injury risk, or choosing equipment for future projects—rely on different decision criteria, not the timing of replacement.