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aishan49
10.10.2021 •
Mathematics
(1 point) Consider the probablility model with sample space {A,B,C) and P(A)=0.3, P(B)=0.3, P(C)=0.4. Then
(a) P(B or C) =
(b) P(A and B ) =
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Ответ:
0.2420
Step-by-step explanation:
Let x be a random variable that represents the number of cars passed through the intersection per day .
As per given , we have
We assume that the number of cars on the interchange is approximately normally distributed.
∵![z=\dfrac{x-\mu}{\sigma}](/tpl/images/0360/1846/8ab38.png)
Then for x= 620,000,
The probability more than 620,000 use the interchange on a random day :-
Hence, the probability more than 620,000 use the interchange on a random day= 0.2420