Probability Quizzes: Test Your Understanding of Chance and Probability

Question 1

A standard deck of cards has 52 cards. What is the probability of drawing a king?

Accepted Answer

1/13

Answer

1/52

Answer

4/52

Question 2

A bag contains 5 red balls and 3 blue balls. Two balls are drawn without replacement. What is the probability that both balls are red?

Accepted Answer

5/14

Answer

3/14

Answer

5/8

Answer

1/2

Question 3

A box contains 4 red balls, 3 blue balls, and 2 green balls. One ball is drawn at random. What is the probability that it is not blue?

Accepted Answer

7/9

Answer

2/9

Answer

3/9

Answer

4/9

Question 4

A coin is flipped 3 times. What is the probability of getting at least two heads?

Accepted Answer

1/2

Answer

1/8

Answer

1/4

Answer

3/8

Question 5

A bag contains 5 red marbles and 3 blue marbles. What is the probability of randomly selecting a blue marble?

Accepted Answer

3/8

Answer

5/8

Answer

3/5

Answer

5/3

Question 6

A coin is flipped twice. What is the probability of getting heads on both flips?

Accepted Answer

1/4

Answer

1/3

Answer

1

Answer

1/2

Question 7

A spinner is divided into 8 equal sections, numbered 1 through 8. What is the probability of spinning a number greater than 5?

Accepted Answer

3/8

Answer

1/2

Answer

5/8

Answer

1/8

Question 8

If you roll a standard six-sided die, what is the probability of rolling an even number or a 3?

Accepted Answer

1/2

Answer

2/3

Answer

1/6

Answer

1/3

Question 9

A deck of cards has 52 cards. What is the probability of drawing a heart or a spade?

Accepted Answer

1/2

Answer

1

Answer

1/4

Answer

1/13

Question 10

In a bag of candies, there are 10 red, 5 green, and 5 blue candies. What is the probability of randomly selecting a candy that is not red?

Accepted Answer

1/2

Answer

1/4

Answer

1/5

Answer

3/4

Question 11

A bag contains 4 red balls and 6 blue balls. Two balls are drawn from the bag without replacement. What is the probability of drawing a red ball and then another red ball?

Accepted Answer

3/25

Answer

2/15

Answer

1/15

Answer

1/6

Question 12

What is the probability of an impossible event?

Accepted Answer

0

Answer

0.5

Answer

1

Question 13

If the probability of an event occurring is 0.3, what is the probability of the event not occurring?

Accepted Answer

0.7

Answer

1

Answer

0.3

Answer

0

Question 14

A fair coin is tossed three times. What is the probability of getting at least one tail?

Accepted Answer

7/8

Answer

3/4

Answer

1/8

Answer

1/2

Question 15

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of picking a blue marble?

Accepted Answer

3/10

Answer

1/3

Answer

1/2

Answer

2/5

Question 16

A coin is flipped twice. What is the probability of getting two heads?

Accepted Answer

1/4

Answer

1/2

Answer

1/8

Answer

1/3

Question 17

A dice is rolled. What is the probability of getting an even number?

Accepted Answer

1/2

Answer

1/6

Answer

1/3

Answer

2/3

Question 18

A card is drawn from a standard deck of 52 cards. What is the probability of drawing a King?

Accepted Answer

1/13

Answer

1/52

Answer

4/52

Answer

1/4

Question 19

A spinner has 8 equal sections, numbered 1 to 8. What is the probability of spinning a prime number?

Accepted Answer

1/2

Answer

3/8

Answer

1/8

Answer

1/4

Question 20

Two events are independent if the outcome of one event does not affect the outcome of the other. Which of the following is an example of independent events?

Accepted Answer

Flipping a coin and rolling a dice.

Answer

Choosing a student from a class and then choosing another student from the same class.

Answer

Selecting a ball from a bag and then selecting another ball without putting the first one back.

Answer

Drawing two cards from a deck without replacement.

Question 21

If the probability of an event is 0.75, what is the probability of the event NOT happening?

Accepted Answer

0.25

Answer

1

Answer

0.75

Answer

0.5

Question 22

A bag contains 4 red balls and 6 blue balls. If two balls are drawn at random without replacement, what is the probability of drawing a red ball followed by a blue ball?

Accepted Answer

6/25

Answer

12/100

Answer

2/5

Question 23

A company produces light bulbs. The probability of a bulb being defective is 0.02. What is the probability that a randomly selected bulb is NOT defective?

Accepted Answer

0.98

Answer

0.5

Answer

0.02

Question 24

A box contains 10 balls numbered 1 to 10. One ball is drawn at random. What is the probability that the number on the ball is a multiple of 3?

Accepted Answer

3/10

Answer

1/3

Answer

1/2

Answer

1/10