Reliability data conversion — μ, σ → R(t)
Converts a mean and standard deviation (normal life distribution) plus a service life into a reliability R(t), by numerical integration of the standard normal density.

z-value1.28
Reliability, R(t)89.98 %
Method & references
- Reliability data conversion from a normal life distribution (mean, standard deviation) to R(t), by numerical integration.
The computation is a literal port of the original client-side JavaScript from /calculators/c1_6.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.