The following table shows the time between failures for a software:
| Error number | 1 | 2 | 3 | 4 | 5 |
| time since last failure (Hours) | 6 | 4 | 8 | 5 | 6 |
The reliability of the system for one hour operation assuming an exponential model is-
1
\(e^{\frac{-9}{29}}\)
2
\(e^{\frac{-7}{29}}\)
3
\(e^{\frac{-5}{29}}\)
4
\(e^{\frac{-3}{29}}\)