Quiz about Math 7 :: Probability Review

Question 1

Probability is ...

Accepted Answer

the chance that some event will occur.

Answer

a game that involves coins.

Answer

a guarantee.

Question 2

Probability can be written as ...

Accepted Answer

all of the above

Answer

a fraction

Answer

a decimal

Answer

a percent

Question 3

A likely chance event is closer to what number?

Accepted Answer

1

Answer

0

Answer

.5

Answer

100

Question 4

An unlikely chance event is closer to what number?

Accepted Answer

0

Answer

1

Answer

2

Answer

3

Question 5

What is the probability of spinning the spinner and having it land on RED?

Accepted Answer

50%

Answer

33%

Answer

12%

Question 6

What is the probability of flipping a coin and getting heads?

Accepted Answer

1/2

Answer

1/3

Answer

1/4

Answer

Never, Tails never fails.

Question 7

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

Accepted Answer

5/11

Answer

5/6

Answer

1/3

Answer

5

Question 8

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

Accepted Answer

70%

Answer

30%

Answer

100%

Answer

0%

Question 9

What is the probability of spinning an even number?

Accepted Answer

50%

Answer

16 2/3%

Answer

33 1/3%

Answer

75%

Question 10

Is the spinner more likely or less likely to land on green than yellow?

Accepted Answer

more likely

Answer

less likely

Question 11

What is the probability of drawing a red card from a standard deck of cards?

Accepted Answer

1/2

Answer

1/52

Answer

13/52

Answer

4/52

Question 12

The probability of Asher's soccer team winning its next game is 7/10.  What is the probability of not winning their next game?

Accepted Answer

3/10

Answer

unlikely

Answer

1/2

Answer

impossible

Question 13

What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?

Accepted Answer

7/20

Answer

1/7

Answer

7/10

Answer

3/10

Question 14

If you were to roll the die one time what is the probability of it landing on a 2?

Accepted Answer

1 out of 6

Answer

2 out of 6

Answer

2 out of 2

Answer

1 out of 1

Question 15

What is the probability of selecting a cherry piece of candy?

Accepted Answer

3 out of 10

Answer

3 out of 3

Answer

3 out of 9

Answer

4 out of 10

Question 16

What is the probability of getting an odd number when rolling a single 6 sided die?

Accepted Answer

3/6

Answer

1/6

Answer

2/6

Answer

3/5

Question 17

What is the probability of the spinner landing on red?

Accepted Answer

5/12

Answer

1/5

Answer

5/5

Answer

3/5

Question 18

What is the probability that you choose blue? *simplify

5 green

6 yellow

8 blue

7 brown

Accepted Answer

4/13

Answer

8/26

Answer

8/25

Answer

1/3

Question 19

What is the probability of spinning a 2 on the spinner?

Accepted Answer

1/8

Answer

1/2

Answer

1/3

Answer

1/4

Question 20

What is the probability the spinner stops on yellow?

Accepted Answer

50%

Answer

.05

Answer

25%

Answer

3/8

Question 21

What is the probability of the spin stopping on yellow?

Accepted Answer

50%

Answer

1/4

Answer

.25

Answer

75%

Question 22

What is the probability of spinning an even number?

Accepted Answer

50%

Answer

16 2/3%

Answer

33 1/3%

Answer

75%

Question 23

Probability is between which two numbers?

Accepted Answer

0-1

Answer

0-100

Answer

5-10

Question 24

Find the probability of rolling a 7 on a single die.

Accepted Answer

0

Answer

1/6

Answer

7/6

Answer

7/7

Question 25

A box has 3 limes, 5 grapes, and 2 oranges.

P (NOT lime)

Accepted Answer

7/10

Answer

3/10

Answer

30%

Answer

Answer Not Here

Question 26

Marvin has a standard deck of cards.

P (Ace or 5)

Accepted Answer

2/13

Answer

1/13

Answer

1/26

Answer

8/50

Question 27

Amelia receives a treat bag. The treat bag contains 10 gumballs, 5 pixie sticks, 2 bracelets, and 3 chocolates. If Amelia selects 3 items from her treat bag without looking and gives them to her sister, which could NOT represent a possible outcome for the items Amelia selects?

Accepted Answer

bracelet, bracelet, bracelet

Answer

gumball, gumball, gumball

Answer

pixie stick, gumball, chocolate

Answer

gumball, gumball, pixie stick

Question 28

The list shows all possible outcomes for which experiment?

S = { (heads, heads), (heads, tails),

(tails, tails), (tails, heads) }

Accepted Answer

Flipping a coin two times

Answer

Flipping a coin one time

Answer

Flipping a coin three times

Answer

Flipping a coin four times

Question 29

What is the probability of spinning red?

Accepted Answer

1

Answer

0

Answer

1/2

Answer

3/4

Question 30

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

Accepted Answer

5/6

Answer

1/2

Answer

1/3

Answer

1/6

Question 31

What is the probability of choosing a vowel from the alphabet?

Accepted Answer

5/26

Answer

21/26

Answer

1/21

Answer

7/21

Question 32

Experimental Probability is:

Accepted Answer

What actually happens

Answer

What Will happen

Answer

What should happen

Answer

What I think Happens

Question 33

Theoretical Probability is?

Accepted Answer

What Should happen

Answer

What does happen

Answer

What Will Happen

Answer

What I want to Happen

Question 34

What is the probability of rolling 15 with a pair of dice?

Accepted Answer

impossible

Answer

unlikely

Answer

equally likely

Answer

likely

Question 35

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

Accepted Answer

70%

Answer

30%

Answer

100%

Answer

0%

Question 36

A bag contains 5 red cards, 4 yellow cards, and 7 blue cards. A card is randomly drawn from the bag. How many outcomes are in the sample space?

Accepted Answer

16

Answer

9

Answer

11

Answer

7

Question 37

A bag contains 5 red cards, 4 yellow cards, and 7 blue cards. A card is randomly drawn from the bag. If X is the event of drawing a card which is not yellow, what are the outcomes favorable to X?

Accepted Answer

The outcomes favorable to event X are drawing 5 red cards and 7 blue cards.

Answer

The outcomes favorable to event X are 16 cards.

Answer

The outcomes favorable to event X are 4 yellow cards.

Answer

The outcomes favorable to event X are drawing no cards.

Question 38

A bag contains 5 red cards, 4 yellow cards, and 7 blue cards. A card is randomly drawn from the bag. If Y is the event of drawing a blue card, what does the complement of Y mean?

Accepted Answer

The complement of Y is drawing a non-blue card.

Answer

The complement of Y is drawing a red card.

Answer

The complement of Y is drawing a yellow card.

Answer

The complement of Y is drawing no card.

Question 39

A coin is flipped repeatedly and the outcomes are HTTHHHTHTHTHTHHTHHTH. What is the experimental probability that the coin lands on heads when you flip the coin again?

Accepted Answer

.6

Answer

.2

Answer

.5

Answer

.7

Question 40

A spinner with outcomes, A, E, O and B is spun and the letter at which the arrow is pointing is recorded. After spinning the spinner several times, it generates the following outcomes: OABBBEAOOBAA. What is the experimental probability that the arrow points at a vowel if you spin the spinner again?

Accepted Answer

.66

Answer

.33

Answer

.5

Answer

1

Question 41

A survey was conducted on 100 randomly selected people about the types of books they usually read. The survey results show that 58 people read novels, 40 people read science fiction, and 10 people read neither. Find the number of people surveyed who read both novels and science fiction.

Accepted Answer

8

Answer

24

Answer

98

Answer

42

Question 42

If a child is randomly selected, what is the probability that the selected child is at least 10 years old but not yet 14 years old?

Accepted Answer

1

Answer

.2

Answer

.55

Answer

.15

Question 43

All the possible results of an activity is called what?

Accepted Answer

Outcomes

Answer

Biased

Answer

Mutually Exclusive

Answer

Complement

Question 44

The collection of all possible outcomes from an activity is known as a(n)

Accepted Answer

Sample Space

Answer

Distribution

Answer

Uniform Probability Model

Answer

Nonuniform Probability Model

Question 45

What is name of the collection of outcomes from an activity?

Accepted Answer

Event

Answer

Probability

Answer

Theoretical Probability

Answer

Venn Diagram

Question 46

What is a way to accurately describe how good the chances are that an event will occur?

Accepted Answer

Probability

Answer

Functional

Answer

Table

Answer

Complement

Question 47

This term means that the chance of each outcome is equal.

Accepted Answer

Fair

Answer

Balanced

Answer

Probability

Answer

Venn Diagram

Question 48

An activity that favors one particular outcome(s) is termed what?

Accepted Answer

Biased

Answer

Unbiased

Answer

Balanced

Answer

Three Dimensional

Question 49

When two events cannot happen at the same time, they are said to be what?

Accepted Answer

Mutually Exclusive

Answer

Complement

Answer

Probability

Answer

Theoretical

Question 50

What is the term for the region in the Venn diagram that is outside the event?

Accepted Answer

Complementary Event

Answer

Probability

Answer

Coordinate Plane

Answer

Circle One

Question 51

What is the term for the number of observations of a data value.

Accepted Answer

Observed Frequency

Answer

Complement

Answer

Vertex

Answer

Common Area

Question 52

What is the term for the probability based on data collected or observations made in an experiment.

Accepted Answer

Experimental Probability

Answer

Theoretical Probability

Answer

Operational Probability

Answer

Functional Probability

Question 53

The ratio of the number of favorable outcomes to the total number of equally like outcomes is called what?

Accepted Answer

Theoretical Probability

Answer

Experimental Probability

Answer

Dastardly Probability

Answer

Historical Probability

Question 54

A table that gives all the possible outcomes and their corresponding probabilities is known as a(n)?

Accepted Answer

Probability Model

Answer

Probability Notation

Answer

Venn Diagram

Answer

Queen's Table

Question 55

A probability model in which all the outcomes have an equal probability is called a(n)?

Accepted Answer

Uniform Probability Model

Answer

Venn Diagram

Answer

Non-Uniform Probability Model

Answer

Complement

Question 56

Identify the shaded area...

Accepted Answer

B

Answer

A

Answer

A'

Answer

B'

Question 57

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play football?

Accepted Answer

⁶⁶/₈₀

Answer

4/80

Answer

¹⁸/₈₀

Answer

⁴⁹/₈₀

Question 58

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play football only?

Accepted Answer

4/80

Answer

⁶⁶/₈₀

Answer

¹⁸/₈₀

Answer

⁴⁹/₈₀

Question 59

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play all three sports?

Accepted Answer

³¹/₈₀

Answer

⁴⁵/₈₀

Answer

⁶²/₈₀

Answer

⁶⁷/₈₀

Question 60

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play Hockey and Rugby?

Accepted Answer

³⁶/₈₀

Answer

5/80

Answer

⁴¹/₈₀

Answer

⁴⁴/₈₀

Question 61

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play any of the three sports?

Accepted Answer

⁷⁹/₈₀

Answer

1/80

Answer

⁷⁴/₈₀

Answer

6/80

Question 62

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they play Rugby or Hockey?

Accepted Answer

⁷⁵/₈₀

Answer

8/80

Answer

¹³/₈₀

Answer

⁴⁴/₈₀

Question 63

The diagram shows the sports played by 80 students.

If a student is picked at random, what is the probability that they don't play Rugby?

Accepted Answer

²⁴/₈₀

Answer

⁷⁷/₈₀

Answer

²³/₈₀

Answer

¹⁷/₈₀

Math 7 :: Probability Review

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