Oxford 9 Probability Pre-test

How would you describe the chance of an event occurring that has a probability of 0.2?

• Impossible

• Certain

• Somewhat likely

• Very unlikely

What is the theoretical probability of selecting a yellow jelly bean in this picture?

• 1/4

• 3

• 3/11

• 3/10

What is the sample space of this figure?11

• 11

• red, green, yellow, blue

• {3 red, 4 green, 3 yellow, 2 blue}

• {red, green, yellow, blue}

Which of these experiments does not have equally likely outcomes?

• rolling a die

• selecting a letter from the word FLOWER

• drawing a card from a deck and recording a suit

• flipping two coins

If you flip a coin 10 times, how many heads would you expect to get?

• 2

• 5

• 7

• 10

If a coin is flipped 20 times and 13 tails are obtained, what is the experimental probability of obtaining a tail?

• 50%

• 13/20

• 7/20

• 10/20

What experiment does this diagram show?

• rolling a die

• flipping one coin twice

• flipping one coin 3 times

• flipping 4 coins

How many outcomes in total are possible in this experiment?

• 1

• 2

• 3

• 4

What is the theoretical probability of flipping two tails in this experiment?

• 1/4

• 2/4

• 3/4

• 4/4

How many people were surveyed in this table?

• 10

• 15

• 25

• 50