You may already know my position on MTBF. If not, in short, do not use MTBF at all, ever, in any form. So what should we use instead.

This chapter explores essential statistical concepts in reliability engineering, focusing on mean vs. median and their impact on understanding probability density curves. It critiques conventional metrics like Mean Time Between Failures (MTBF), advocating for a more nuanced approach to reliability assessment that emphasizes data analysis and preventive maintenance.