What allows objects to take electrons from other objects through friction
1 answer:
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Answer:
c. 0.7404
Step-by-step explanation:
We can use Bayes Formula,
We know every single value of that expression except P(C). We can calculate C by dividing into 2 cases: if the customer is new or not.
By the total probability theorem, we know that P(C) = P(C|N)*P(N) + P(C|N')*P(N') = 0.5*0.8 + 0.7*0.2 = 0.4+0.14 = 0.54
We replace P(C) on the equation above and we obtain
Thus, P(N|C) = 0.7407. Answer c is correct
I hope this helped you!
Let X be the number of cars recovered from stolen cars. Let n be the total number of stolen cars and p be the probability that car will be recovered.
Given: n=10, x=5
It is given that a car with a certain protection system will be recovered 87% of the time. It means probability of recovering a car is p=0.87
Probability that 5 out of 10 stolen cars will be recovered is
P(X=x ) =
P(X=5) =
P(X=5) = 0.0047
The probability that exactly 5 out of 10 stolen cars will be recovered is 0.0047
Answer:
Its answer is 20 because there is no x with 20 number so it willl be same
:)