Free Printable DPISD - 7th grade

1.

Mr. Carter will roll a number cube and spin a four-section spinner for a probability experiment. The faces of the number cube are labeled 1 through 6, and the spinner is like the one below. If Mr. Carter rolls the number cube once and spins the spinner once, which list contains only the outcomes in which the number cube lands on a number greater than 2?

a)

4A, 4B, 4C, 4D, 5A, 5B, 5C, 5D, 6A, 6B, 6C, 6D

b)

2A, 2B, 2C, 2D

c)

1A, 2B, 3C, 4D, 5A, 6B

d)

3A, 3B, 3C, 3D, 4A, 4B, 4C, 4D, 5A, 5B, 5C, 5D, 6A, 6B, 6C, 6D

2.

At an assembly, 6 out of the first 10 students who entered the gym were carrying a sling bag. Based on this information, if 450 students were at the assembly, how many students could be expected to be carrying a backpack?

a)

270

b)

27

c)

60

d)

240

3.

A bag contains 6 red marbles, 4 blue marbles, 3 yellow marbles, and 2 green marbles. A marble will be drawn from the bag and replaced 60 times. What is a reasonable prediction for the number of times a red or blue marble will be drawn?

a)

5

b)

15

c)

20

d)

40

4.

Monica has a bag of coins. The bag contains 8 dimes, 3 nickels, and 1 penny. She will randomly select 2 coins from the bag one at a time without replacement. What is the probability that Monica will select a nickel first and then a penny?

a)

1/44

b)

4/23

c)

3/12

d)

1/48

5.

Debbie has a bag of bottles of nail polish. The bag contains 6 pink, 5 purple, 4 green, 9 red, & 6 sparkles. Debbie selects a bottle of nail polish at random. Based on the information in the table, which statement is true?

a)

The color of the nail polish is more likely to be red than all the other colors combined.

b)

The color of the nail polish is equally likely to be pink, purple, or sparkles.

c)

The color of the nail polish is three times as likely to be red as it is to be pink.

d)

The color of the nail polish is less likely to be purple than it is to be sparkles.

6.

At a carnival, there are 6 red, 8 yellow, 4 orange, 3 green, 2 blue, & 3 purple balloons set-up for the dart show. Based on this information, which statement is true?

a)

The probability of hitting a red balloon is twice as likely as it is to hitting a yellow balloon.

b)

The probability of hitting a red balloon is three times as likely as hitting a blue balloon.

c)

The probability of hitting a green balloon is more likely than hitting a yellow balloon.

d)

The probability of hitting an orange balloon is equally as likely as hitting a purple balloon.

7.

Sarah went to the store and purchased 2 packages of AAA batteries. Each package contains 16 batteries. She tests all of the batteries and finds that 4 of them are defective. Based on these results, if she purchases additional, similar-sized packages, what can she predict about this brand of batteries?

a)

3 packages of batteries will contain 4 more defective batteries than 2 packages of batteries.

b)

4 packages of batteries will contain 2 more defective batteries than 2 packages of batteries.

c)

5 packages of batteries will contain 20 more defective batteries than 2 packages of batteries.

d)

6 packages of batteries will contain 8 more defective batteries than 2 packages of batteries.

8.

On Ricky’s shelf are:
· 6 mystery books
· 5 science books
· 4 history books
· 3 adventure books
Ricky will randomly choose 1 book to read. What is the probability that he will choose a mystery book?

a)

1/3

b)

1/18

c)

6/12

d)

1/6

9.

5. Julia has these cans of soup in her kitchen cabinet. Julia will randomly choose one can of soup. Then she will put it back and randomly choose another can of soup.
· 3 cans of tomato soup
· 2 cans of chicken soup
· 2 cans of cheese soup
· 1 cans of potato soup
· 2 can of beef soup
What is the probability that she will choose a can of beef soup and then a can of cheese soup?

a)

4/20

b)

1/50

c)

1/25

d)

4/10

10.

The spinner shown is divided into congruent sections that are labeled from 1 to 10. If the spinner is spun one time, what is the probability of the arrow not landing on a section labeled with multiple of 2?

a)

1/2

b)

3/10

c)

9/10

d)

4/5

11.

Mr. Carter will roll a number cube and spin a four-section spinner for a probability experiment. The faces of the number cube are labeled 1 through 6, and the spinner is like the one below. If Mr. Carter rolls the number cube once and spins the spinner once, which list contains only the outcomes in which the number cube lands on a number greater than 3?

a)

5A, 5B, 5C, 5D, 6A, 6B, 6C, 6D

b)

1A, 1B, 1C, 1D

c)

4A, 4B, 4C, 4D, 5A, 5B, 5C, 5D, 6A, 6B, 6C, 6D

d)

1A, 2B, 3C, 4D, 5A, 6B

12.

At an assembly, 4 out of the first 10 students who entered the gym were carrying a sling bag. Based on this information, if 500 students were at the assembly, how many students could be expected to be carrying a backpack?

a)

200

b)

40

c)

20

d)

150

13.

A bag contains 6 red marbles, 4 blue marbles, 3 yellow marbles, and 2 green marbles. A marble will be drawn from the bag and replaced 60 times. What is a reasonable prediction for the number of times a yellow or green marble will be drawn?

a)

5

b)

20

c)

30

d)

40

14.

The spinner shown is divided into congruent sections that are labeled from 1 to 10. If the spinner is spun one time, what is the probability of the arrow not landing on a section labeled with multiple of 3?

a)

3/10

b)

7/10

c)

1/10

d)

9/10

15.

Gabby has these cans of soup in her kitchen cabinet. Gabby will randomly choose one can of soup. Then she will put it back and randomly choose another can of soup.
· 3 cans of tomato soup
· 2 cans of chicken soup
· 2 cans of cheese soup
· 1 cans of potato soup
· 2 can of beef soup
What is the probability that she will choose a can of tomato soup and then a can of cheese soup?

a)

6/20

b)

5/50

c)

3/50

d)

5/10

16.

On Ricky’s shelf are:
· 6 mystery books
· 5 science books
· 4 history books
· 3 adventure books
Ricky will randomly choose 1 book to read. What is the probability that he will choose a history book?

a)

1/4

b)

1/18

c)

1/36

d)

2/9

17.

Monica has a bag of coins. The bag contains 8 dimes, 3 nickels, and 1 penny. She will randomly select 2 coins from the bag one at a time without replacement. What is the probability that Monica will select a dime first and then a penny?

a)

1/12

b)

9/23

c)

1/36

d)

2/33

18.

Angela has a bag of bottles of nail polish. There are 8 pink, 3 purple, 2 green, 9 red, & 8 sparkles. Angela selects a bottle of nail polish at random. Based on the information, which statement is true?

a)

The color of the nail polish is more likely to be red than all the other colors combined.

b)

The color of the nail polish is equally likely to be pink, purple, or sparkles.

c)

The color of the nail polish is three times as likely to be red as it is to be purple.

d)

The color of the nail polish is less likely to be purple than it is to be green.

19.

The list shows the number of different colors of balloons set up for a dart game at a carnival.
5 red, 6 yellow, 5 orange, 4 green, 1 blue, & 4 purple
Which statement is true?

a)

The probability of hitting a red balloon is twice as likely as it is to hitting a yellow balloon.

b)

The probability of hitting a blue balloon is five times as likely as is it to hitting an orange balloon.

c)

The probability of hitting a green balloon is more likely than hitting a yellow balloon.

d)

The probability of hitting an orange balloon is equally likely as hitting a red balloon.

20.

Julia went to the store and purchased 2 packages of AAA batteries. Each package contains 16 batteries. She tests all of the batteries and finds that 2 of them are defective. Based on these results, if she purchases additional, similar-sized packages, what can she predict about this brand of batteries?

a)

3 packages of batteries will contain 4 more defective batteries than 2 packages of batteries.

b)

4 packages of batteries will contain 3 more defective batteries than 2 packages of batteries.

c)

5 packages of batteries will contain 3 more defective batteries than 2 packages of batteries.

d)

6 packages of batteries will contain 8 more defective batteries than 2 packages of batteries.

21.

Graysen has a green number cube and a white number cube. The faces of the cubes are numbered 1 through 6. Graysen will roll each cube one time. What is the probability that the green cube will land with an even number face and the white cube will land with a number greater than 2 face up?

a)

1/9

b)

1/36

c)

1/3

d)

1/6

22.

A bag contains 4 sour apple candies and 3 watermelon candies. One piece of candy is chosen at random and returned to the bag. Then a second piece of candy is chose at random. What is the probability that both pieces of candy will be sour apple?

a)

1/16

b)

12/49

c)

16/49

d)

8/7

23.

During an experiment, Robin tossed a fair coin 10 times and got 6 "heads". Based on these results, what is the probability the coin will land showing heads on Robin's next toss?

a)

1/2

b)

4/6

c)

3/5

d)

6/4

24.

Karla will select 2 different side dishes from the following list at a restaurant.
French fries (F)
Salad (S)
Onion rings (O)
Beans (B)
Which list shows all the possible outcomes of 2 different side dishes from this list?

a)

FS, OB

b)

FS, FO, SB, SO, OB

c)

FS, FO, FB, SO, SB, OB

d)

FS, FO, SO, SB

25.

Matt has a bag containing 12 one-dollar bills and 8 five-dollar bills. Without looking, he pulls out one bill and places it on the table. He then picks a second bill from the bag. What is the probability he will have 2 five-dollar bills?

a)

8/20 x 7/19

b)

8/20 x 7/20

c)

1/8 x 1/7

d)

1/8 x 1/8

26.

Mr. Kello rolls a fair number cube with faces numbered 1 through 6. The probability of rolling a number greater than 4 is 1/3. What is the complement of this event?

a)

1

b)

0

c)

1/3

d)

2/3

DPISD - 7th grade - Probability Review

Total questions: 26

Worksheet time: 2hrs 10mins

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