1. On a multiple-choice test, each question has 5 answers, only one of each is correct. A student makes random guessing on Questions 1, 2 and 3. What is the probability that all three answers are correct?

	1.	1/125
	2.	3/125
	3.	1/15
	4.	3/25
	5.	None of these answers

2 points

QUESTION 7

1. A bag contains 6 red marbles, 7 blue marbles, and 6 green marbles. If one marble is randomly picked from the bag, what is the probability that this is a blue marble?

	1.	7/19
	2.	7/18
	3.	6/18
	4.	6/19
	5.	None of these answers

2 points

QUESTION 8

A bag contains 5 red marbles, 10 blue marbles, and 20 green marbles. If one marble is taken out at random, what is the probability that it is not green?

	1.	395
	2.	0.429
	3.	0.492
	4.	571
	5.	None of these answers

2 points

QUESTION 9

A bag contains 5 red marbles, 10 blue marbles, and 20 green marbles. If two marbles are taken out at random, one by one, without replacement, what is the probability that they are both blue?

	1.	0.0816
	2.	0.0840
	3.	0.0756
	4.	0.0735
	5.	None of these answers

2 points

QUESTION 10

Two cards are drawn at random with replacement from a deck of 52 cards. What is the probability that both cards are aces?

	1.	0.006
	2.	0.345
	3.	0.2704
	4.	1/52
	5.	None of these answers

2 points

QUESTION 11

1. A photographer is going to take a shot of a group of 6 persons. In how many ways can he arrange them in one row?

	1.	1
	2.	6
	3.	720
	4.	46,656
	5.	None of these answers

2 points

QUESTION 12

1. A group of 4 persons must be selected from a class of 40 students. In how many ways can it be selected?

	1.	24
	2.	91,390
	3.	2,193,360
	4.	548,340
	5.	None of these answers