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2 answers:
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Answer: fraction collin correct.
Solution:
Collin correct 16 out of 80.
It means total correct answer would be 16.
Total number of question would be 80
We have to find the fraction of correct answer.
Fraction =
We get fraction,
Now, we reduce the fraction if possible.
We reduce fraction by divide numerator and denominator by same number .
Here we divide numerator and denominator by 16 and we get ,
Simplest fraction
Answer:
Explanation:
This is a typical problem of conditional probability.
In this case you know:
- the probability of the event D <em>(an international flight leaving the U.S. is delayed in departing</em>), which is 0.36 and you can write as P(D) = 0.36
- the probability of event P <em>(an international flight leaving the U.S. is a transpacific flight</em>), which is 0.25 and you can write as P(P) = 0.25;
- the joint probability of event P and D (<em>international flight leaving the U.S. is a transpacific and is delayed in departing</em>), which is 0.09 and you can write as P (P ∩ D) = 0.09.
You need to determine the <em>probability that an international flight leaving the United States is delayed given that the flight is a transpacific flight</em>, i.e. the conditional probability P (D/P).
Hence, use the formula for conditional probability:
- P (D/P) = P (D ∩ P) / P(D) = P (P ∩ D) / P (D)
- P (D/P) = 0.09 / 0.25 = 0.36