Week 3 Practice - Probability

You complete a trial where you draw 100 cards. Of the 100, 42 are black and 58 are red. What is the experimental probability of the next card being black?

• 42%

• 58%

• 40%

• 50%

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling a number greater than 4?

• 1/6

• 1/3

• 2/3

• 1/2

You completed an experiment where you rolled a dice 12 times and recorded your data in the table above. What is the experimental probability of rolling a 4?

• 2/6

• 1/6

• 1/12

• 5/12

A regular 6-sided die is to be rolled once. What is the probability that a number less than or equal to 4 is rolled?

• 1/2

• 1/4

• 5/6

• 2/3

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10
• 3/9
• 1/9
• 1/3

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10
• 3/9
• 1/9
• 1/3

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

Theoretical Probability is?

• What Should happen
• What does happen
• What Will Happen
• What I want to Happen