Register to reply 
Determining the time intervals 
Share this thread: 
#1
Nov1407, 04:07 PM

P: 13

1. The problem statement, all variables and given/known data
Assuming that the random time to failure of a relay is exponentially distributed with a failure rate lambda of 2 x 10^7 per hour, determin ethe time intervals between failures(years) which have 99%, 95%, 50%, 1%, and 0.1% probabilities of being exceeded 2. Relevant equations Reliability function 1 the cumulative distribution function 3. The attempt at a solution putting in the values of lambda 2 X 10^7 and hours per year of (24 x 31 x 12) my value is way off the mark for 99% which is 5.7, incidentally 95%, 50%, 1%, and 0.1% are 29.3, 394.6, 2628.5, and 3942.8 


Register to reply 
Related Discussions  
Calculus Question: Determining intervals  Calculus & Beyond Homework  0  
Determining combustion burn time...  Mechanical Engineering  5  
Determining orbits from R.A., Dec, & time  Astronomy & Astrophysics  12  
Determining Time When Comparing Two Equations  Introductory Physics Homework  4 