Free Printable Probability Review

1.

6 red pens & 4 blue pens. You pick one, keep it and then pick another. What is the probability both will be red?

a)

$\frac{1}{3}$

b)

$\frac{1}{30}$

c)

$\frac{9}{25}$

d)

$\frac{1}{36}$

2.

Joan flipped a coin 100 times. The coin landed on tails 36 times. Based on her results, which is true?

a)

The coin landed on heads less than expected.

b)

The coin landed on heads more than tails.

c)

The coin landed on tails more than expected.

d)

The coin landed on heads less than tails.

3.

2 lollipops, 4 candy bars, 6 chewy candies. What are the total number of possible combinations, if you get one of each?

a)

12

b)

15

c)

24

d)

48

4.

You spin the spinner and roll a number cube. What is the probaility of getting red and the number 4.

a)

$\frac{2}{6}$

b)

$\frac{1}{6}$

c)

$\frac{1}{12}$

d)

$\frac{1}{36}$

5.

Jesse's probability of throwing a curve ball is 1/4. If he throws 20 pitches, how many should be curveballs?

a)

1

b)

5

c)

2

d)

10

6.

Independent or Dependent? Flipping a coin two times.

a)

Independent

b)

Dependent

7.

Independent or Dependent? Picking a jelly bean out of a bag, eat it, then pick another.

a)

Independent

b)

Dependent

8.

What is the likelihood of rolling an even number on a number cube?

a)

Unlikely

b)

Equally likely as unlikely

c)

Likely

d)

Certain

9.

What is the likelihood of spinning a spinner with only blue spaces and landing on blue?

a)

Unlikely

b)

Equally likely as unlikely

c)

Likely

d)

Certain

10.

What is the likelihood of rolling a number greater than 5 on a number cube?

a)

Unlikely

b)

Equally likely as unlikely

c)

Likely

d)

Certain

11.

Here are the results after rolling a number cube 100 times. What is the experimental probability of getting a 4?

a)

$\frac{17}{100}$

b)

$\frac{1}{6}$

c)

$\frac{1}{4}$

d)

$\frac{16}{100}$

12.

Here are the results after rolling a number cube 100 times. What is the experimental probability of getting a number greater than 4?

a)

$\frac{17}{100}$

b)

$\frac{24}{100}$

c)

$\frac{10}{100}$

d)

$\frac{14}{100}$

13.

Ethan has 6 blue hats, 4 green hats and 5 pink hats. What is P(blue or pink)?

a)

$\frac{11}{15}$

b)

$\frac{30}{225}$

c)

$\frac{1}{11}$

14.

Ethan has 6 blue hats, 4 green hats and 5 pink hats. What is P(blue, pink)?

a)

$\frac{11}{15}$

b)

$\frac{30}{225}$

c)

$\frac{1}{11}$

15.

Ethan has 6 blue hats, 4 green hats and 5 pink hats. What is P'(blue)?

a)

$\frac{9}{15}$

b)

$\frac{20}{225}$

c)

$\frac{6}{11}$

16.

Rolling a number cube and getting an even number or a 4 is...

a)

Mutually Exclusive

b)

Inclusive

17.

Rolling a number cube and getting an odd number or a 4 is...

a)

Mutually Exclusive

b)

Inclusive

18.

A jar contains 8 marbles: 3 are red and 5 are blue. What is the probability of selecting a red marble, replacing it, and then selecting another red marble?

a)

9/64

b)

6/56

c)

15/64

d)

25/64

19.

If a dice is rolled 300 times, how many times would you predict a roll of a 1 or a 6?

a)

50

b)

100

c)

150

d)

75

20.

Probability can be written as a

a)

fraction

b)

decimal

c)

percent

d)

all of the above

21.

Probability (as a decimal) is between which two numbers?

a)

0-100

b)

5-10

c)

0-1

22.

A box has 3 limes, 5 grapes, and 2 oranges.

P' (lime)

a)

3/10

b)

30%

c)

7/10

d)

Answer Not Here

23.

The list shows all possible outcomes for which experiment?

S = { (heads, heads), (heads, tails),

(tails, tails), (tails, heads) }

a)

Flipping a coin one time

b)

Flipping a coin two times

c)

Flipping a coin three times

d)

Flipping a coin four times

24.

Experimental Probability is:

a)

What Will happen

b)

What actually happens

c)

What should happen

d)

What I think Happens

25.

Theoretical Probability is?

a)

What Should happen

b)

What does happen

c)

What Will Happen

d)

What I want to Happen

26.

If you were to conduct the experiment 1000, how many times would you expect to get Ella's name? (HINT: Relative Frequency)

a)

200

b)

250

c)

500

d)

400

27.

What is the THEORETICAL probability of getting the name Joey?

a)

$\frac{3}{4}$

b)

$\frac{9}{10}$

c)

$\frac{1}{4}$

d)

$\frac{1}{10}$

28.

Each spinner shown will be spun one times. Which of the following tree diagrams shows all of the possible outcomes when each spinner is spun once?

a)

b)

c)

d)

Probability Review

Total questions: 28

Worksheet time: 15mins

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