Answer: a) 
Step-by-step explanation:
Given : 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 detects theft with a probability of .99 independently of the others .
Probability for independent events
occurs together =
.
Then, the probability that when a theft occurs, all four systems will detect it
= (0.99) x (0.99) x (0.99) x (0.99)

Hence, the probability that when a theft occurs, all four systems will detect it is
.
Hence, the correct answer is a)
.
Step-by-step explanation:
n (U)=2000
n (A)=50% of 2000
=(50÷100)×2000
= 1000
n( B) = 40%
= (40÷100)×2000
= 800
n(AuB)(compliment) = 15%
=(15÷100)×2000
=300
Venn diagram ta banauna aauxha holani
I hope you know how to make a Venn diagram.
Mark me as a brainliest
Answer:
One minute and 25 seconds
Step-by-step explanation:
Answer:
the answer is 2 you add one and the other one and it makes 2
Step-by-step explanation:
Answer:
12.124-3
Step-by-step explanation:



