Which are following are cited properly? Choose all that are correct.

Which of the following is correct when it comes to citing a paraphrase?

Assume that random guesses are made for 6 multiple-choice questions on a test with 5 choices for each question.  Find the mean of the probability distribution. Round to hundredths if necessary. 

What is the bare minimum amount of sources you need to use?

Can you use outside sources you find on your own?

First person (I and me) is fine to use in this essay. 

The deficiency of this neurotransmitter is associated with Parkinson disease.

Earache:

Farsightedness is more properly called:

This cranial nerve functions in the sense of  smell: