Probability2

1. What is the Theoretical Probability of not landing on red?

• 25%

• 50%

• 65%

• 67.7%

2. An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling a 3.

• 1/6

• 3/6

• 1

• 1/2

3. In a cup are the numbers 1 - 20. Find the theoretical probability of picking an even number. 

• 10/20

• 1/2

• 1/20

• 20/20

4. Find the experimental probability: Roll dice:  1, 3, 3, 4, 4

P(1) = 

• 3/5

• 1/6

• 2/5

• 1/5

5. On a 6-sided die, which is more likely?

• Rolling an odd number

• Rolling an even number

• They are both equally likely.

6. Experimental Probability is:

• What Will happen 

• What actually happens

• What should happen

• What I think Happens

7. Without looking, Jeremy takes a marble out of a bag that contains 10 red marbles, 15 green marbles, and 25 blue marbles. He records its color and returns the marble to the bag. If Jeremy repeats this process 90 times, how many times can he expect to pull out a red marble?

• 5

• 10

• 15

• 18

8. What is the probability of flipping a coin and getting heads?

• 1/2

• 1/3

• 1/4

• Never, Tails never fails.

9. The chart below represents the number of marbles in a jar.

P(green) = 

• 5/19

• 10/28

• 5/14

10. 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