Free Printable Probability

Worksheets

Probability

Total questions: 26

Worksheet time: 1hrs 26mins

Name

Class

Date

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

3/10

3/9

1/9

1/3

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

1/10

3/10

30%

What is the probability of flipping a coin

3 times and getting 3 heads?

1/8

1/4

1/2

3/4

The theoretical probability of rolling an even number on a dice.

3/6

1/2

1/6

5/6

You pick a marble from this bag.

What is the probability you will choose either a black or white marble?

3/5

9/100

1/10

2/5

A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?

1/9

2/9

5/21

10/21

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

5/11

5/6

1/3

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

In a cup are the numbers 1 - 20. Find the theoretical probability of
picking a number divisible by 5.

4/20

1/5

5/20

1/4

10.

A bag contains 9 green marbles, 5 yellow marbles and 6 red marbles. You choose one marble. What is the probability of selecting a green or red marble? Do you add or multiply probabilities?

Add

Multiply

11.

A die is rolled. What is the probability of rolling a 5 or a number greater than 3?

2/3

1/2

5/6

12.

Two fair coins are tossed. What is the probability of getting at most one head? (Hint: Create a sample space)

1/2

3/4

1/4

13.

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.

3/20

1/4

3/31

2/27

14.

A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25^th? (December has 31 total days.)

8.5%

8.84%

80.6%

3.2%

15.

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

3/10

3/9

1/9

1/3

16.

Which formula do you use when two events are mutually exclusive?

P(A or B) = P(A) + P(B)

P(A or B) = P(A) + P(B) - P(both)

P(A and B) = P(A) * P(B)

P (A and B) = P(A) * P(B|A)

17.

The letters that form the word MATHEMATICS are placed individually in a bowl. When selecting a letter from the bowl, what is the probability of choosing a vowel?

16/121

4/11

3/11

5/11

18.

40% of students in a school wore blue on a Spirit Day. If two students are randomly selected, what is the probability that both students will not be wearing blue?

0.16

0.36

0.24

0.60

19.

Find P(diamond or face card)?

11/26

25/52

3/52

21/52

20.

What is the probability that the person picked will be a boy given they speak German?

8/11

2/5

4/25

3/11

21.

Probability can be written as ...

a fraction

a decimal

a percent

all of the above

22.

What is the probability of rolling a 2 on a dice AND pulling a spade out of a deck of cards?

1 ⁄ 10

1 ⁄ 12

1 ⁄ 24

1 ⁄ 6

23.

An automobile dealer decides to select a month for its annual sale. Find the probability that it will be September or October.

1/12

1/6

1/4

5/6

24.

At a community swimming pool there are 2 managers, 8 lifeguards, 3 concession stand clerks, and 2 maintenance people. If a person is selected at random, find the probability that the person is either a lifeguard or a manager.

2/3

8/15

2/15

not enough information

25.

Find the probability of drawing a 10 from a standard deck of 52 cards.

1 out of 52

13 out of 52

26 out of 52

4 out of 52

26.

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?

2/7

5/49

5/7

10/49

100 %

Probability

Total questions: 26

Worksheet time: 1hrs 26mins

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