ci_fail_chances

Case A (Sunny days) : Patches fail cuz of product defects seen x3 times more often than infra issues observed

0.37		0.54073
single job	bracnhed jobs

0.1	N
0.3	P

Case B (Hard times): Patches fail equally often cuz of product defects and cuz of infra issues
0.51		0.83193
single job	bracnhed jobs

0.3	N
0.3	P