Probability Quiz

If you have 4 red, 6 black, 3 blue, 2 yellow, and 5 purple marbles, what is the probability of picking a purple marble?

• 1/4

• 1/5

• 1/2

• 1/3

What is the probability of rolling a 2 on a fair six-sided die?

• 1/6

• 1/2

• 1/3

• 1/4

What is the definition of theoretical probability?

• What actually happens when conducting an experiment

• The likelihood of an event occurring based on past data

• What "should" happen when conducting an experiment

• The number of successful outcomes divided by the total number of trials

In a deck of 52 cards, what is the probability of getting a queen?

• 1/4

• 1/13

• 1/26

• 1/52

Harry picked a queen from a deck 9 out of 104 times. Compared to the theoretically probability, how did Harry do?

• Harry did worse than expected, theoretically he should have selected it 10 times.

• Harry did better than expected, theoretically he should have selected it 8 times.

• Harry did as expected, theoretically he should have selected it 9 times.

• Harry did worse than expected, theoretically he should have selected it 7 times.

Using a tree diagram, what is the sample space for tossing two coins?

• (H, H), (H, T), (T, H), (T, T)

• (H, H), (T, T)

• (H, T), (T, H)

• (H, H), (H, H), (T, T), (T, T)

If a coin is tossed and an ace is chosen from a deck of cards, what is the probability of getting heads on the coin and an ace of hearts?

• 1/8

• 1/4

• 1/2

• 1/16

How many possible outcomes are there when tossing two coins?

• 4

• 2

• 3

• 5

What is the result of multiplying 7 and 9?

• 56

• 63

• 72

• 81

Jack has a bag of jellybeans with 6 green, 4 blue, 5 red, and 1 yellow jellybean. She will take turns selecting jellybeans. What is the probability of picking two yellow jellybeans?

• 1/16

• 1/256

• 1/128

• 1/512