Answer:
a) 0.9999
b)0.0001
Step-by-step explanation:
Given that probability of failure is 0.0001
Then;
a) finding the probability that none of the "criticality 1" items would fail will be;
1-0.0001 =0.9999
b)To find the probability of an event occurring at least once it will be the complement of the probability of the event never occurring.
P(at least one)= 1- P(none)
=1-0.9999= 0.0001
