From: Reliability Assessment for the Solenoid Valve of a High-Speed Train Braking System under Small Sample Size
Failure probability
Variance value
0.1
0.1125
0.125
p 1
1.20
1.09
0.91
p 2
1.50
1.36
1.13
p 3
1.79
1.62
p 4
2.22
2.01
1.69
p 5
2.58
2.34
1.96
p 6
2.93
2.66
2.23
p 7
3.15
2.85
2.39
p 8
3.36
3.04
2.55