Bob received 45 trading card from his collection. Bob's father, gives his son a few more trading cards and he now has at least 9
2 answers:
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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) .
-0.5
Hope this helps, explanation is in image :)
Hope this helps, explanation is in image :)
Answer:
Price of 23 toys = $276
Price of 1 toy =
Price of 12 toys =?
Price of 12 toys =