Answer:
Why did Phillis Wheatley write "On Being Brought from Africa to America"? to describe the horrors of slave ships to tell what it was like in her native land to emphasize that blacks may become Christians to encourage people to bring Africans to America
Explanation:
Answer: 0.9765
Explanation:
The cumulative distribution function for exponential distribution for random variable x is given by :-
, where
is the mean of the distribution .
Given : On average, 5 customers arrive at the drive-up window of a fast-food restaurant every 4 minutes during the lunch hour.
Then 
Now, the probability that the next customer will arrive within three minutes :-

Hence, the probability that the next customer will arrive within three minutes = 0.9765
What? do you mean how do they create?
I believe the answer is A. Hope that helps you