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25.03.2021 •
Mathematics
Strong earthquakes occur according to a Poisson process in a metropolitan area with a mean rate of once in 50 years. There are three bridges in the metropolitan area. When a strong earthquake occurs, there is a probability of 0.3 that a given bridge will collapse. Assume the events of collapse between bridges during a strong earthquake are statistically independent; also, the events of bridge collapse between earthquakes are also statistically independent.
Required:
What is the probability of "no bridge collapse from strong earthquakes" during the next 20 years?
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Ответ:
€1333.33
Step-by-step explanation:
Al Tom ratio to Joe=5:4
Joe gets 1.5 times the amount Al gets
€3000 in the ratio 5:4
Al share
5/9×3000
=€1666.67
Joe share
4/9×3000
=€1333.33