Understand Theoretical Probability

What is the P(even or odd)?

• 1/3

• 2/3

• 1

What is the P(4 or 5)?

• 1/4

• 1/2

• 3/4

• 1

What is the P(even or greater than 2)?

• 2/3

• 1/5

• 1/6

• 1/2

What is the probability of picking an orange marble and spinning blue?

• 1/5

• 1/9

• 5/9

What is the probability of spinning a yellow and flipping a heads?

• 1/2

• 1/6

• 1/12

What is the probability of picking a pink marble from the first group and a pink marble from the second group?

• 1/30

• 1/5

• 1/2

What is the probability of spinning a green on the first spinner and a green on the second spinner?

• 3/10

• 3/8

• 9/80

What is the P(heads or tails)?

• 0

• 1/2

• 1

If you roll a 6-sided die 12 times, what is the best prediction for the number of times you will roll an odd number?

• 3 times

• 6 times

• 12 times

You select a marble without looking and then put it back. If you do this 8 times, what is the best prediction for the number of times you will pick an orange marble?

• 0 times

• 1 times

• 4 times

• 8 times