Author Question: A class consists of 10 male and 30 female students. If one student is randomly selected from the ... (Read 140 times)

mynx · **on:** Jun 20, 2018

A class consists of 10 male and 30 female students. If one student is randomly selected from the class, what is the probability of selecting a male student?

a. 10/30 c. 1/10
b. 10/40 d. 1/40

Question 2

Which of the following is a requirement for a random sample?

a. Every individual has an equal chance of being selected.
b. The probabilities cannot change during a series of selections.
c. There must be sampling with replacement.
d. All of the other 3 choices are correct.