2. A psychology class consists of 14 males and 36 females. If the professor selects names from the class list using random sampling, a. What is the probability that the first student selected will be...

2.
A psychology class consists of 14 males and 36 females. If the professor selects names from the class list using
random

sampling,

a.
What is the probability that the first student selected will be a female?

b.
If a random sample of
n
= 3 students is selected and the first two are both females, what is the probability that the third student selected will be a male?

3.
What are the two requirements that must be satisfied for a random sample?