Answer:
25% is called a quarter of 900
Step-by-step explanation:

Answer: Our required probability is 0.167.
Step-by-step explanation:
Since we have given that
n = 15
Probability of success p = 80% = 0.8
Probability of failure q = 20% = 0.2
We need to find the probability that at least fourteen will work.
So, by Binomial distribution, we get that

Hence, our required probability is 0.167.
The U.S wanted to be isolationists
it did not enter the war untill the japanese bombed Pearl Harbor