Probability Review

Theoretical

100

What is the probability of rolling a 3 on a standard die?

1/6

200

What is the probability of a traffic light turning purple?

0

300

I have a bag with an equal number of blue, green, and red marbles. What is the probability of pulling out a red marble?

1/3

400

I have a bag with 4 blue marbles, 7 green marbles, and 5 red marbles. What is the probability of me pulling out a red marble?

5/16

500

I have a bag with 4 blue marbles, 6 green marbles, and 5 red marbles. What is the probability of pulling out a blue or green marble?

2/3

Dependent Compound

100

Events that DO affect each other

Dependent Events

200

I am pulling marbles out of a bag WITHOUT replacing them. The bag has 3 blue, 1 red, and 4 green. What is the probability of getting a blue and then a red?

3/56

300

I am pulling marbles out of a bag WITHOUT replacing them. The bag has 3 blue, 1 red, and 4 green. What is the probability of getting a blue and then a green?

3/14

400

I am pulling marbles out of a bag WITHOUT replacing them. The bag has 3 blue, 1 red, and 4 green. What is the probability of getting a blue twice?

3/28

500

I am pulling marbles out of a bag WITHOUT replacing them. The bag has 3 blue, 1 red, and 4 green. What is the probability of getting a red twice?

0

Making Predictions

100

If I flip a coin 10 times, how many times can I expect to flip tails?

5

200

Out of the last 20 die rolls, Juan got four 7 times. How many times can he expect to four if he rolls the die 100 times?

35

300

I have a bag with 3 blue marbles and 3 green marbles. How many times can I expect to get a blue marble if I draw 50 marbles out of the bag?

25

400

I have a bag with 3 blue, 1 red, and 4 green marbles. How many red marbles can I expect if I draw marbles out of the bag 40 times?

5

500

I have a bag with 3 blue, 1 red, and 4 green marbles. How many blues or greens can I expect if I draw marbles out of the bag 80 times?

70

Independent Compound

100

What is the probability of flipping tails twice in a row?

1/4

200

What is the probability of rolling a 2 twice in a row?

1/36

300

What is the probability of rolling a 2 and flipping heads?

1/12

400

What is the probability of rolling a number greater than 2 and then rolling an even number?

1/3

500

What is the probability of rolling an odd number, flipping heads, and then rolling a number less than 2?

1/24

Definitions

100

What we expect to happen?

Theoretical

200

What actually happens

Experimental

300

More than two events are happening

Compound

400

The result of an experiment

Outcome

500

How often an outcomes occurs

Frequency