...=20
with
luck!
aBasically it is the _statistical_ point where the root sum square failure= rate=20 of the individual components becomes 50% probability.
calculate MTBF
Jan 21, 2010
22 Replies
Note that for the often used exponential distribution (applicable for a constant failure rate), we will then have the reliability at time t as R(t) = exp(-t/MTBF). So the probability that any one component actually survives to its MTBF is only about 37%.
Rich Webb Norfolk, VA
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