Probability Skills Assessment

What is the experimental probability of rolling a 3 on a fair six-sided die after rolling it 50 times and getting 10 threes?

• 0.1

• 0.8

• 0.5

• 0.2

If a bag contains 5 red marbles, 3 blue marbles, and 2 green marbles, what is the theoretical probability of randomly selecting a red marble?

• 4/10 or 4/5

• 2/10 or 2/5

• 3/10 or 3/5

• 5/10 or 1/2

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

• 2/7

• 1/5

• 1/8

• 3/8

If a coin is flipped 20 times and lands on heads 14 times, what is the experimental probability of landing on heads?

• 0.4

• 1.2

• 0.7

• 0.9

In a deck of 52 cards, what is the theoretical probability of drawing a heart?

• 1/5

• 1/2

• 1/4

• 1/3

If there are 12 boys and 8 girls in a class, what is the probability of randomly selecting a girl?

• 0.4

• 0.75

• 1.2

• 0.6

A box contains 6 red balls, 4 blue balls, and 5 green balls. What is the theoretical probability of randomly selecting a blue ball?

• 5/15

• 3/15

• 6/15

• 4/15

If a number cube is rolled and lands on 3, what is the theoretical probability of rolling an odd number?

• 0.75

• 1.0

• 0.5

• 0.25

If a bag contains 10 black socks and 5 white socks, what is the probability of randomly selecting a black sock?

• 2/3

• 4/15

• 3/5

• 1/3

A jar contains 30 candies, 12 of which are chocolate. What is the experimental probability of picking a chocolate candy?

• 0.4

• 1.2

• 0.2

• 0.6