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WorksheetsProbability Applications Review
Total questions: 50
Worksheet time: 2hrs 13mins
Name
Class
Date
1.
Aaron took a multiple choice test. There were 25 questions, of which he answered 4 incorrectly. At this rate, how many questions should Aaron expect to answer incorrectly if he takes a test with a total of 150 questions?
a)
123
b)
24
c)
373
d)
47
2.
The probability of a video game being defective is 1 out of 20. About how many video games would be defective in a shipment of 490 video games? (Round your answer to the nearest whole number.)
a)
490
b)
25
c)
98
d)
100
3.
There are 480 students in Marla’s school. In her classroom, there are 3 left-handed students and 17 right-handed students. Predict the number of left-handed students in the whole school.
a)
72
b)
85
c)
124
d)
208
4.
An ice-skating rink inspects 25 pairs of skates and finds 2 pairs to be defective. The rink has 175 pairs of ice skates. Predict the number of pairs that are likely to be defective.
a)
14
b)
50
c)
7
d)
65
5.
Shannon made the last 12 out of 20 shots for the varsity basketball team. How many shots would you expect him to make in his next 160 shot attempts?
a)
96
b)
120
c)
24
d)
80
6.
An ostrich's eye is bigger than which organ?
a)
Liver
b)
Brain
c)
Stomach
d)
Heart
7.
The results of a random survey showed that 42 out of 84 people plan to vote for Coach Vasquez for teacher of the month. Which is the best prediction of the total number of votes he will receive if 2,000 people vote?
a)
825
b)
750
c)
1200
d)
1000
8.
The probability of a table-tennis ball being defective is 1 out of 10 . About how many balls would be defective in a case of 725 table-tennis balls? (Round your answer to the nearest whole number.)
a)
73
b)
125
c)
80
d)
310
9.
Twenty-five people were asked which gift was their favorite. Using the table,which statement is false?
a)
Perfume & flowers were equally favored
b)
Jewelry was the favorite 1/5 of the time.
c)
Perfume & clothes were favored half the time.
d)
Flowers were twice as popular as clothes
10.
Twenty-five people were asked which of the four gifts was their favorite. Which gift was favored 16% of the time?
a)
Flowers
b)
Perfume
c)
Jewelry
d)
Clothing
11.
These 12 shapes are put into a bag. If you reach into the bag 60 times, replacing the shape after each time, predict how many times you would pull out a circle.
a)
15 times
b)
20 times
c)
25 times
d)
30 times
12.
It would take a sloth one month to travel
a)
One mile
b)
Two miles
c)
Three miles
d)
Four miles
13.
100 second graders were asked to do a book report about one of these four zoo animals. The number of students who chose each animal is shown in the table. If 250 second graders had to choose of of the four animals, predict how many would choose to write about a giraffe.
a)
60 students
b)
50 students
c)
40 students
d)
30 students
14.
150 people were polled on their favorite sport. The results are in the table. Which statement is true?
a)
Baseball & swimming are more popular than football.
b)
Football & tennis are more popular than soccer & baseball.
c)
25% of people prefer soccer & basketball.
d)
10% more people prefer soccer than basketball.
15.
150 people were polled on their favorite sport. Based on the table, if you asked only 25 people what their favorite sport is, how many would say soccer is their favorite sport?
a)
5 people
b)
6 people
c)
8 people
d)
10 people
16.
ESPN sportscasters voted on next year's likely Superbowl champion. Their votes are in the table. Which statement is true based on the table?
a)
The Cowboys & Raiders are equally likely to win the Superbowl next year.
b)
The Steelers are twice as likely as the Cowboys to win the Superbowl next year.
c)
The Steelers are 5% more likely to win the Superbowl than the Packers.
17.
The grocery store will ask another group of 25 dentists each to recommend a toothpaste brand. Based on the information in the table, what is the most reasonable prediction of the number of dentists in this group who will recommend Brand T?
a)
3
b)
2
c)
9
d)
4
18.
The human body contains about 60,000 miles of blood vessels
a)
True
b)
False
19.
The table shows the number of votes for different school mascots. Based on the information in the table, what is the most reasonable prediction of the number of votes for eagle out of the next 25 votes?
a)
72
b)
8
c)
1
d)
21
20.
A bag contains:-5 red marbles-6 blue marbles-3 green marbles-4 black marbles-2 yellow marbles
A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?
A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?
a)
14
b)
65
c)
7
d)
35
21.
Ichiro has a set of 20 cards that each show a different number, as shown. Ichiro will randomly select one of these cards. What is the probability that the card he selects will be a prime number?
a)
8/12
b)
1/8
c)
8/20
d)
10/20
22.
A principal randomly chose 40 students from grade 5. Of these students, 9 were wearing watches. Based on this information, what is the most reasonable prediction of the number of students wearing watches in a group of 120 students from grade 5?
a)
27
b)
9
c)
18
d)
80
23.
A family is planning a 7 day vacation during July at a city where there is a water park and an amusement park. The city experiences an average of 8 rainy days in July. When it rains, both parks are closed. If the family would like to spend at least 2 days at each park, should they go?
a)
yes
b)
no
24.
Which former PEZ flavor was an actual flavor?
a)
Coffee
b)
Menthol
c)
Eucalyptus
d)
All of the above
25.
Which is the best way to simulate choosing one student out of 12 to be the class president?
a)
roll a die and flip a coin
b)
roll a die
c)
spin a spinner with 4 sections
d)
flip a coin
26.
The questions on a multiple choice test each have 6 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?
a)
rolling a six-sided number cube 6 times
b)
rolling a six-sided number cube 20 times
c)
spinning a spinner with 4 equal sized sections 4 times
d)
choosing 1 marble in a bag of 20 different colored marbles
27.
The probability of it raining today is 30%. What is the probability that it will NOT rain?
a)
30%
b)
70%
c)
100%
d)
0%
28.
The questions on a multiple choice test each have 5 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?
a)
rolling a number cube 5 times
b)
spinning a five-sided spinner 20 times
c)
flipping a coin 20 times
d)
choosing 1 marble in a bag of 20 different colored marbles
29.
Samuel has 5 different colors of pens and 2 different colors of paper. Which model could be used to simulate how many different combinations he has?
a)
spin a 5-sided spinner, then flip a coin
b)
roll a die 5 times
c)
flip a coin 5 times
d)
spin a 7-sided spinner twice
30.
What does the "Q" in Q-Tips stand for?
a)
Quantity
b)
Quick
c)
Quality
d)
Quiet
31.
A cereal company is placing one of 6 different toys into its boxes of cereal. Which model could be used to simulate the toys you would randomly find in 50 boxes of cereal?
a)
a coin that is flipped 50 times
b)
a 4-sided spinner that is spun 50 times
c)
a number cube that is rolled 50 times
d)
a coin is flipped and a number cube is rolled 50 times
32.
The questions on a multiple choice test each have 6 answer choices. Which model can be used to simulate randomly selecting the correct answer on a 20 question multiple choice test?
a)
rolling a six-sided number cube 6 times
b)
rolling a six-sided number cube 20 times
c)
spinning a spinner with 4 equal sized sections 4 times
d)
choosing 1 marble in a bag of 20 different colored marbles
33.
Which is the best way to represent answering 25 multiple-choice questions with 4 choices for each answer?
a)
spin a spinner with four sections 25 times
b)
roll a die 25 times
c)
flip a coin 25 times
d)
roll a die 4 times
34.
A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective?
a)
spin a spinner with 4 equal sections
b)
roll a die twice
c)
flip a coin twice
d)
flip a coin, then roll a die
35.
Layla has 2 pairs of shoes and 6 pairs of socks. If each pair of socks and each pair of shoes is equally like to be chosen, which is the best simulation to show the probability of choosing any given combination?
a)
roll a die and flip a coin
b)
roll a die two times
c)
flip a coin 6 times
d)
flip a coin 2 times
36.
How far can a sneeze travel?
a)
100 miles per hour
b)
1,000 meters per second
c)
10,000 miles per second
37.
Samuel has 5 different colors of pens and 2 different colors of paper. Which model could be used to show how many different choices he has?
a)
spin a spinner with 5 sections, then flip a coin
b)
roll a die 5 times
c)
flip a coin 5 times
d)
roll a die, then flip a coin 5 times
38.
An ice cream parlor offers 15 different flavors of ice cream. Which model could be used to show how many different choices there are?
a)
spin a spinner with 5 sections
b)
flip a coin
c)
spin a spinner with 15 sections
d)
roll a die and flip a coin
39.
A cereal company is placing one of 6 different tickets into its boxes of cereal. If each ticket is equally likely to appear in a box of cereal, which model could be used to simulate the tickets you would find in 50 boxes of cereal?
a)
a coin that is flipped 50 times
b)
a spinner that has 4 sections that is spun 50 times
c)
a number cube that is rolled 50 times
d)
a coin is flipped and a number cube is rolled 50 times
40.
A teacher wants to randomly choose 4 students to answer a series of questions. If there are 20 students in the classroom, describe a model that the teacher could use to simulate choosing these 4 students.
a)
rolling a number cube 20 times
b)
spinning a spinner with 20 sections 4 times
c)
flipping a coin 20 times
d)
rolling a number cube and flipping a coin 20 times
41.
A game requires drawing tiles with letters A through E for each of 8 slots to determine the winning code. Describe a model that could be used to simulate the selection of the number
a)
a number cube and a coin are flipped 8 times
b)
a spinner has 8 different sections and is spun 5 times
c)
a number cube is rolled 5 times
d)
a spinner has 5 different sections and is spun 8 times
42.
In the early stage version of Wizard of Oz, Dorothy's companion was a...
a)
dog
b)
pig
c)
cow
d)
goat
43.
What percent range is something most likely to occur?
a)
25-50%
b)
50%
c)
51-99%
d)
100%
44.
What percent is something impossible to happen?
a)
1%
b)
0%
c)
80%
d)
74%
45.
What percent is something equally likely to happen?
a)
50%
b)
75%
c)
25%
d)
100%
46.
Joe has a playlist with 8 country, 3 jazz, 12 rock and 10 pop songs. If the playlist is randomly shuffled, how likely is it that her play list will play a country song?
a)
impossible
b)
most likely
c)
equally likely
d)
unlikley
47.
Two coins are flipped. Player A gets a point if the coins match. Player B gets a point if there is no match. In this game:
a)
Player A is more likely to win
b)
Player B is more likely to win
c)
Player A & B have the same chance of winning
d)
There is not enough information to decide
48.
Sandy's bag has 2 purple cubes out of 3 cubes. Tom's bag has 8 purple cubes out of 20 cubes. Who is most likely to reach in their bag and get a purple cube?
a)
Sandy
b)
Tom
c)
They have an equal chance of getting purple
d)
There is not enough information to answer this question
49.
Marta and Cary play on their basketball team at school. Their coach had to pick a player to take a foul shot. A teammate thought the coach would pick Marta because she has made 100% of her shots, but he picked Cary who has only made 60% of her shots this season. Why did the coach choose Cary? (see chart)
a)
He liked Cary better
b)
Marta was unreliable based on her shots
c)
Marta has only shot 2 foul shots and made them, where Cary has shot 100 and made 60
d)
Marta was not a great player
50.
Jack had 15 pieces of candy after Halloween. he had 8 peanut butter cups, 2 skittles, 1 smarties, and the rest were gum. How likely is Jack to reach in his bag and grab gum?
a)
Most likely
b)
Least likely
c)
Certain
d)
equally likley
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