Free Printable WDYE Probability Test

1.

What does the Probability tell you if it is a fraction, decimal or percent close to zero?

a)

There is a high chance of it happening

b)

There is a low chance of it happening

c)

there is zero chance of it happening

d)

The data s incomplete

2.

What does the Probability tell you if the data is close to 1?

a)

There is a 1% chance

b)

There is almost 100% Chance

c)

It is an unlikely chance

d)

The data is incomplete

3.

What does the Probability tell you if the data results in 1/2?

a)

Only 1/2 the data is present

b)

There is a 50-50 chance

c)

50% of the data is incorrect

d)

.5, 50% and 1/2 are all the same

4.

I have a bag that has 7 blue, 5 red and 3 green marbles.
Find the theoretical probability in percent form of drawing a green marble if I did 45 trials?
READ THE QUESTION CAREFULLY!

a)

1/5 of the marbles are green

b)

I have 9/45 chance to draw a green marble

c)

I have a 20% chance of selecting green marble

d)

There is an 80% chance of not pulling a green marble

5.

I have a bag that has 7 blue, 5 red and 3 green marbles.
Find the theoretical probability in decimal form of drawing a red marble if I did 60 trials?
READ THE QUESTION CAREFULLY!

a)

.33

b)

5/15

c)

67%

d)

33%

6.

Kevin places some marbles in a pouch. He then has 15 friends pick a marble while replacing the marbles each time. The results are as follows.
SEE PICTURE
What is the experimental probability for drawing a red marble?

a)

7/15

b)

7/8

c)

7/100

d)

7/10

7.

Kevin places some marbles in a pouch. He then has 15 friends pick a marble while replacing the marbles each time. The results are as follows.
SEE PICTURE
What is the experimental probability for drawing a yellow marble?

a)

1/5

b)

1/4

c)

3/100

d)

3/10

8.

Kevin places some marbles in a pouch. He then has 15 friends pick a marble while replacing the marbles each time. The results are as follows.
SEE PICTURE
What is the experimental probability for drawing a blue marble?

a)

1/3

b)

1/2

c)

5/100

d)

5/10

9.

Kevin tells his friends that he had 10 marbles in the bag with 5 red, 3 blue and 2 green.
What is the theoretical probability for drawing a red marble?

a)

50%

b)

30%

c)

20%

d)

10 of 5

10.

Kevin tells his friends that he had 10 marbles in the bag with 5 red, 3 blue and 2 green.
What is the theoretical probability for drawing a blue marble?

a)

3/7

b)

3/10

c)

20%

d)

10 of 3

11.

Kevin tells his friends that he had 10 marbles in the bag with 5 red, 3 blue and 2 green.
What is the theoretical probability for drawing a green marble?

a)

0.5

b)

0.3

c)

0.2

d)

2/8

12.

How do the theoretical and experimental probabilities compare?

a)

One you analyze data to make predictions and the other you actually conduct the experiment.

b)

One is only an educated guess and the other is a fact

c)

One has theoretical data and the other has actual data

d)

One is a ratio of outcomes and the other has trial outcomes

13.

A restaurant lets customers design their own meals. Customers choose items from two categories: one entrée and one drink.
How many meals can be designed?

a)

4

b)

2

c)

6

d)

8

14.

A restaurant lets customers design their own meals. Customers choose items from two categories: one entrée and one drink.
If meals are made randomly, what is the theoretical probability that a meal will include a hamburger?

a)

25%

b)

17%

c)

50%

d)

75%

15.

A restaurant lets customers design their own meals. Customers choose items from two categories: one entrée and one drink.
If meals are made randomly, what is the theoretical probability that a meal will include a hamburger and chicken?

a)

25%

b)

17%

c)

0%

d)

75%

16.

A restaurant lets customers design their own meals. Customers choose items from two categories: one entrée and one drink.
If meals are made randomly, what is the theoretical probability of a meal having chicken and juice?

a)

1/4

b)

1/8

c)

1/6

d)

1/2

17.

The spinner has 3 options: Red, Blue, or Yellow. Jacob says because there are three colors there is a 1/3 chance of each color being picked. Brittany says, just because there are three colors doesn’t mean there is always an equal chance of each happening. Who do you agree with? How do you know?
SELECT the best answer

a)

Jacob is correct because 3 colors mean 3 total possibilities

b)

Jacob is correct because there is only one result out of 3.

c)

Brittany is correct because the options are not all the same size.

d)

Brittany is correct because red is half the spinner while the other 2 are only 1/4 a piece.

18.

What are the possible outcomes for this game?

a)

RR, BY, GG, Y

b)

RR, YY, RG, BR, BY, BG, GR, GY, GG, YR, RY, YG

c)

R, R, B, G, Y, Y, G

d)

RR, RY, RG, RB, YR, YB, YG, YY, GR, GB, GG

19.

What is the theoretical probability of choosing a red and a blue marble on one turn?

a)

1/7

b)

1/12

c)

1/2

d)

1/21

20.

Design an experiment where the experimental outcomes may differ from the theoretical outcomes. Please explain why these probabilities might be different.
SELECT the BEST answer

a)

The cup flip, There are 2 ends and 1 side. So theoretically the ends would be more likely.

b)

The coin flip, It should be 50-50 but many times the experiment would not come out 50-50

c)

The marble draw, If there are 7 red and 10 blue 41% of the time you will draw a red. But not necessarily.

d)

Any situation could meet this situation because it is all left to chance and not an exact science.

WDYE Probability Test

Total questions: 20

Worksheet time: 2hrs 40mins

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