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Probability Mixed Practice

Total questions: 19

Worksheet time: 10mins

Name
Class
Date
1.

If Bobby randomly chooses one marble from the bag, what is the probability that he will choose a green marble?

a)

1/3

b)

8/27

c)

7/27

d)

3/27

2.

What is the probability that the arrow will land on a green section the first time and a purple section the second time when Paul spins the spinner twice?

a)

1/9

b)

1/18

c)

1/36

d)

1/4

3.

Which of the following diagrams shows all the possible outcomes when each arrow is spun once?

a)

A

b)

B

c)

C

d)

D

4.

What is the probability that Sarah will have steak for dinner on Sunday?

a)

1/9

b)

1/3

c)

2/9

d)

1/12

5.

A drawer of crayons contains the following crayons: 6 pink, 2 yellow, and 4 orange. A crayon is randomly selected and replaced, then another is selected. What is the probability that a pink crayon will be selected both times?

a)

1/4

b)

1/3

c)

9/49

d)

36/144

6.

Kristen has a box of cupcakes with the following flavors: 6 chocolate, 10 vanilla, 4 strawberry, and 2 blueberry. If Kristen selects a cupcake at random, which statement is true?

a)

The cupcake is 2 times as likely to be chocolate than it is strawberry

b)

The cupcake is 5 times as likely to be vanilla as it is blueberry

c)

The cupcake is equally likely to be any of the four flavors

d)

The cupcake is more likely to be vanilla than all other flavors combined

7.

A bag of M&Ms contains 12 red M&Ms, 6 blue M&Ms, 8 green M&Ms, and 14 brown M&Ms. An M&M will be drawn from the bag and replaced 60 times. What is a reasonable prediction for the number of times a red or blue M&M will be drawn?

a)

18 times

b)

27 times

c)

30 times

d)

29 times

8.

Fred has a variety of marbles laid out on the table. Fred chooses a marble at random and does not replace it. He then selects a second marble at random. What is the probability that Fred selects a dotted marble both times?

a)

1/9

b)

1/7

c)

3/28

d)

4/9

9.

Martha rolls a 6-sided number cube (number one through six) two times. What is the probability that she will roll a prime number both times?

a)

4/9

b)

1/4

c)

2/4

d)

1/16

10.

Based on the data in the table, what is the probability that a random customer will NOT buy a blue shirt?

a)

6/6

b)

28/36

c)

8/36

d)

7/9

11.

What is the probability that both coins Henry selects are quarters?

a)

20/210

b)

1/7

c)

2/21

d)

40/420

12.

What is the probability that the first piece of fruit Darlene selects will be an apple and the second piece of fruit will be an orange?

a)

12/182

b)

1/14

c)

6/91

d)

7/91

13.

A grocery store worker is checking for broken eggs in egg cartons. Each carton of eggs contains 12 eggs. He checks 4 cartons and finds 8 broken eggs. Based on these results, what can the worker predict about the rest of the cartons of eggs?

a)

A

b)

B

c)

C

d)

D

14.

Henry's candy jar has the following pieces of candy in it: 3 Snickers, 1 Reese's, 1 Twix, 2 Milky Ways, and 2 Skittles Packs. Henry will randomly choose one piece of candy. He will then put it back and randomly choose another piece of candy. What is the probability that he will choose a Milky Way and then a Snickers?

a)

2/27

b)

1/7

c)

3/37

d)

5/7

15.

What is the probability that both the arrow will land on a blue section and Laura will roll an even number?

a)

3/16

b)

1/4

c)

9/48

d)

27/48

16.

What is the probability that Noah will randomly select a chocolate chip cookie from the first jar and then an oatmeal-raisin cookie from the second jar?

a)

36/288

b)

3/24

c)

I/9

d)

1/8

17.

Paul will spin the spinner shown two times. What is the probability that the arrow will land on a dotted section the first time and a striped section the second time?

a)

1/18

b)

1/6

c)

12/36

d)

2/36

18.

Laura will spin the shown spinner once and roll a dice (numbered one through six) once. What is the probability that both the arrow will land on a shaded section and she will roll a three on the dice?

a)

1/12

b)

1/6

c)

3/48

d)

1/16

19.

Grade your level of understanding of Simple and Compound Probability?

a)

b)

c)

d)