Xavier2712
03.09.2020 •
Mathematics
For safety reasons, four different alarm systems were installed in the vault containing the safety deposit boxes at a Beverly Hills bank. Each of the four systems will fail to detect theft with a probability of .01 independently of the others.The bank, obviously, is interested in the probability that when a theft occurs, at least one of the four systems will fail to detect it. This probability is equal to:.
a. (.99)^4b. 1 - (.99)^4
c. (.01)^4
d. 1 - (.01)^4e. none of these
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Ответ:
The answer is A I hope it’s right
Step-by-step explanation:
405-319=86