Probability Quiz

Calculating probability of simple events: What is the probability of rolling a 3 on a fair six-sided die?

• 1/4

• 1/2

• 1/6

• 1/3

Calculating probability of simple events: If a bag contains 5 red marbles, 3 blue marbles, and 2 green marbles, what is the probability of picking a red marble?

• 3/10 or 3/10

• 2/10 or 2/10

• 5/10 or 1/2

• 4/10 or 4/10

Calculating probability of simple events: A box contains 4 black socks, 3 white socks, and 2 blue socks. What is the probability of picking a white sock?

• 3/9

• 2/7

• 5/11

• 1/4

Calculating probability of simple events: If a spinner is divided into 8 equal sections and stops on a section numbered 5, what is the probability of this happening?

• 2/9

• 1/5

• 1/8

• 3/8

Calculating probability of simple events: If a deck of cards contains 52 cards, what is the probability of drawing a heart?

• 13/52

• 1/52

• 26/52

• 39/52

Theoretical probability: What is the theoretical probability of flipping a coin and getting heads?

• 3/4

• 1/2

• 1/3

• 2/5

Theoretical probability: If a bag contains 4 red balls, 3 blue balls, and 5 green balls, what is the theoretical probability of picking a blue ball?

• 3/5

• 2/12

• 1/10

• 3/12 or 1/4

Theoretical probability: If a box contains 6 black pens, 4 blue pens, and 2 red pens, what is the theoretical probability of picking a red pen?

• 3/10

• 1/4

• 2/6

• 1/6

Theoretical probability: If a spinner is divided into 6 equal sections and stops on a section numbered 3, what is the theoretical probability of this happening?

• 1/2

• 1/3

• 1/6

• 1/4

Theoretical probability: If a deck of cards contains 52 cards, what is the theoretical probability of drawing a spade?

• 1/52

• 1/2

• 1/13

• 1/4