Free Printable Unit 5 Probability

Worksheets

Unit 5 Probability

Total questions: 20

Worksheet time: 1hrs 5mins

Name

Class

Date

Probability is ...

the chance that some event will occur.

a game that involves coins.

a guarantee.

Probability can be written as ...

a fraction

a decimal

a percent

all of the above

The chart below represents the number of marbles in a jar.
P(green) =

5/19

10/28

5/14

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

P(not A) =
*Remember to simplify.*

6/8

3/4

2/8

1/4

What is the sample space?

6 bears

orange, green, red, white, yellow

unlikely

2 red bears

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

3/5

1/6

2/5

1/5

What is the probability of spinning green?

1/4

1/2

3/4

What is the probability of spinning green or blue?

5/12

1/2

3/4

10.

How do you write 0.02 as a percent?

20%

200%

.02%

11.

A set of all possible outcomes is known as -

a list

a complement

a sample space

an event

12.

Find the relative frequency of spinning Letter Q.

15/15

3/10

3/50

7/10

13.

Use the tree diagram to find the probability of tossing a head first and then a tail when a coin is tossed twice.

1/2

1/4

1/3

14.

Ms. Mullins is playing cards with her friend with a standard deck of 52 cards. She needs to draw an Ace. What is the probability that she does NOT get the ace? (Hint: There are 4 aces in a deck)

1/4

1/13

12/13

48/52

15.

How would you simulate the results of a true/false test with 20 questions on it?

Spin a 20 section spinner twice

Flip a coin 20 times

Spin a 2 section spinner

Roll a dice 10 times

16.

You roll a six sided die. What is the probability of rolling an even number three times in a row?

3/100

1/2

1/6

1/8

17.

A teacher randomly selects one student from a group of students where 12 are wearing a black shirt, 8 are wearing a red shirt, and 12 are wearing a blue shirt.

What is the probability that the selected student is wearing a blue shirt?

Enter your answer as a fraction, in simplified form.

3/8

8/32

1/3

1/5

18.

Mrs. Rutteledge has one of her students do a probability demonstration. The student uses tape to mark a line on the floor and spins a top in the middle of the line. He then records whether the top stops to the left or to the right of the line. This is repeated 40 times, with the results shown in the table. What is the relative frequency that the top stops to the left of the line?

28%

70%

75%

12%

19.

At a pizza shop, customers can select either crispy crust (C) or deep crust (D).

Suppose that two customers place an order and select their crust. What is the sample space for this action?

CD, DD, CC, DC

CCD, DDD, CCC, DCC

D, C

DC, CD, CD, DC

20.

Based on the picture, find the probability if I roll a 5 on the number cube, and spin a blue letter.

⅙ x ¼ = 1/24

5/6 x 1/4 = 5/24

Reset

Unit 5 Probability

Total questions: 20

Worksheet time: 1hrs 5mins

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