Probability Quiz

What is the probability of rolling a 3 on a fair six-sided die?

• 1/2

• 1/4

• 1/3

• 1/6

If you flip a fair coin 100 times and get 60 heads, what is the experimental probability of getting heads?

• 0.4

• 0.5

• 0.6

• 0.7

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

• 1/2

• 5/8

• 2/5

• 3/8

If two fair coins are flipped, what is the probability of getting heads on both coins?

• 1.0

• 0.5

• 0.75

• 0.25

In a deck of cards, what is the probability of drawing a heart and then drawing a spade without replacement?

• 13/204

• 1/20

• 1/18

• 1/16

A spinner is divided into 8 equal sections numbered 1 to 8. What is the probability of spinning an odd number?

• 5/8

• 3/8

• 1/2

• 1/4

If you roll two fair dice, what is the probability of rolling a sum of 7?

• 1/12

• 1/2

• 1/3

• 1/6

A bag contains 4 red marbles and 6 green marbles. If one marble is drawn at random and then another marble is drawn without replacement, what is the probability of drawing two red marbles?

• 2/15

• 1/5

• 3/10

• 4/15

If you flip a fair coin 10 times and get 5 heads, what is the experimental probability of getting tails?

• 0.3

• 0.7

• 0.5

• 1.0

A jar contains 10 red balls and 5 blue balls. If one ball is randomly selected and then another ball is randomly selected without replacement, What is the probability both balls are red?

• 1/3

• 3/7

• 4/9

• 2/5