Resources

Resources

Experimental probability

A jewelry store recently sold

52

pieces of jewelry, and

22

of them were bracelets. What is the experimental probability that the next piece of jewelry sold will be a bracelet? Write your answer as a fraction or whole number.

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P(\text{bracelet})=

Rebecca and Darius just discovered they both have the same breed of dog, a sheltie. Rebecca said she gives her sheltie, Bongo,

1.5

cups of dog food each day. Darius gives his sheltie, Daisy,

1 \frac{1}{3}

cups of dog food each day.

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Which sheltie gets more dog food?

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Emily and Sean had a contest to see who could hold a handstand the longest. Emily could hold a handstand for

12.5

seconds, and Sean could hold a handstand for

12\frac{3}{5}

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Who could hold a handstand longer?

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Gabrielle works in the skateboard department at Action Sports Shop. Here are the types of wheel sets she has sold so far today:

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street, longboard, street, cruiser, street, cruiser, street, street, longboard, street

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Based on the data, what is the probability that the next set Gabrielle sells will be street wheels?

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Write your answer as a fraction or whole number.

In her geology class, Nora learned that quartz is found naturally in a variety of colors. Nora's teacher has a giant box of colorful quartz pieces that he and his students have collected over the years. Nora picks a piece of quartz out of the box, records the color, and places it back in the box. She does this

18

3

2

5

8

pink quartz pieces.

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Based on the data, what is the probability that the next piece of quartz Nora picks will be yellow?

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Write your answer as a fraction or whole number.

At Frosty Freeze,

14

18

sundaes sold had nuts. What is the experimental probability that the next sundae sold will have nuts?

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Write your answer as a fraction or whole number.

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P(\text{nuts}) = \_\_\_

Celine surveyed

14

students at her school about their favorite professional sports. Of the students surveyed,

6

said tennis was their favorite sport. What is the experimental probability that the next student Celine talks to will pick tennis?

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Write your answer as a fraction or whole number.

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P(\text{tennis}) = \_\_

Nate is birdwatching at the coast. He has seen

2

vultures out of

12

total birds. What is the experimental probability that the next bird Nate sees will be a vulture?

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Write your answer as a fraction or whole number.

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P(\text{vulture}) = \_\_

Franco is at the state fair with some friends. He is deciding between buying a jumbo pack of

50

ride tickets for

\$45

or a medium pack of

30

ride tickets for

\$28.50

. Which pack is the better deal?

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Liz and Rick are squeezing lemons for a lemonade stand. Liz squeezed

18

6

minutes. Rick squeezed

24

12

minutes. Who squeezed lemons at a faster pace?

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Barbara wants to buy some glittery heart-shaped beads to make friendship bracelets. The beads she wants come in a small pack with

90

beads or a large pack with

300

beads. The small pack costs

3.60

\$

, while the large pack costs

9.00

\$

. Which pack is the better value?

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Dillon and Samantha work at two different grocery stores. Dillon made

41.50

\$

5

hours and Samantha made

50.40

\$

6

hours. Who makes more money per hour?

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Cordelia surveyed a random sample of

57

students at Sunnydale High about their favorite season. Of the students surveyed,

31

chose summer as their favorite season. If there are

721

students at Sunnydale High, what is the most reasonable estimate of the number of students whose favorite season is summer?

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1

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224

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329

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392

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411

The mass of Stewart's favorite frying pan is

0.52

kilograms. What is the mass of the frying pan in grams?

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1

=

1,000

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1

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5.2

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52

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520

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5,200

Pat's Pizza made

21

14

23

pepperoni pizzas, and

14

sausage pizzas yesterday.

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Based on this data, what is a reasonable estimate of the probability that the next pizza made is not a cheese pizza?

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Choose the best answer.

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1

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51\%

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66\%

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71\%

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81\%

A committee must be formed with

4

4

students. If there are

7

teachers to choose from, and

14

students, how many different ways could the committee be made?

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In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If

14

5

girls are competing, how many different ways could the six medals possibly be given out?

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In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If

9

14

girls are competing, how many different ways could the six medals possibly be given out?

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In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If

12

14

girls are competing, how many different ways could the six medals possibly be given out?

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In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If

5

14

girls are competing, how many different ways could the six medals possibly be given out?

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In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If

7

14

girls are competing, how many different ways could the six medals possibly be given out?

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20

students running in a race. How many different arrangements of first, second, and third place are possible?

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18

students running in a race. How many different arrangements of first, second, and third place are possible?

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A pizza shop has available toppings of pepperoni, bacon, anchovies, onions, sausage, and peppers. How many different ways can a pizza be made with

3

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12

students running in a race. How many different arrangements of first, second, and third place are possible?

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21

students running in a race. How many different arrangements of first, second, and third place are possible?

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13

students running in a race. How many different arrangements of first, second, and third place are possible?

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A blood bank needs

12

people to help with a blood drive.

18

people have volunteered. Find how many different groups of

12

can be formed from the

18

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A blood bank needs

4

people to help with a blood drive.

11

people have volunteered.

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Find how many different groups of

4

can be formed from the

11

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A pizza shop has available toppings of bacon, anchovies, pepperoni, onions, olives, and mushrooms. How many different ways can a pizza be made with

2

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A pizza shop has available toppings of peppers, sausage, pepperoni, bacon, and mushrooms. How many different ways can a pizza be made with

2

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A pizza shop has available toppings of mushrooms, peppers, onions, olives, anchovies, and sausage. How many different ways can a pizza be made with

2

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A pizza shop has available toppings of sausage, mushrooms, onions, olives, anchovies, pepperoni, and peppers. How many different ways can a pizza be made with

2

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Three different golfers played a different number of holes today. Shanika played

9

holes and had a total of

43

strokes. Alicia played

18

holes and had a total of

79

strokes. Rickie played

27

holes and had a total of

123

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Which golfer had the lowest number of strokes per hole?

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1

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At a football stadium,

20 \%

of the fans in attendance were teenagers. If there were

390

teenagers at the football stadium, what was the total number of people at the stadium?

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1700

people attended a football game. If

4 \%

of the people who attended were teenagers, how many teenagers attended the game?

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1200

people attended a football game. If

4 \%

of the people who attended were teenagers, how many teenagers attended the game?

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Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold

33

cards, which was

5 \%

of the cards sold for Mother's Day. How many cards were sold for Mother's Day?

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800

people attended a football game. If

4 \%

of the people who attended were teenagers, how many teenagers attended the game?

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12 \%

of a number equals

2

60 \%

of that number.

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30 \%

84

70 \%

of the same number is

196

40 \%

of that number.

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3

-number code made up of

28

numbers. If none of the numbers are allowed to repeat, how many different ways can you choose three different numbers in order for a unique code?

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3

-number code made up of

21

numbers. If none of the numbers are allowed to repeat, how many different ways can you choose three different numbers in order for a unique code?

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Five students, Leah, Fawzia, Yusuf, Hailey, and Autumn, line up one behind the other. How many different ways can they stand in line?

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26

students in a homeroom. How many different ways can they be chosen to be elected President, Vice President, and Treasurer?

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5

athletes at a track meet. How many different ways can they finish first or second?

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26

students in a homeroom. How many different ways can they be chosen to be elected President, Vice President, Treasurer, and Secretary?

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16

students in a homeroom. How many different ways can they be chosen to be elected President, Vice President, and Treasurer?

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3

-number code made up of

23

numbers. If none of the numbers are allowed to repeat, how many different ways can you choose three different numbers in order for a unique code?

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Three students are running a race. How many different ways can they come in first, second, and third?

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