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Year 7 Probability Quiz 1

Total questions: 19

Worksheet time: 28mins

Name
Class
Date
1.
What is probability?
a)
A number between zero and one
b)
The chance or the likelihood of an event happening
c)

The number of favorable outcomes divided by the total number of outcomes.

d)
All of the choices are true.
2.

If you randomly selected a marble from the marbles in the diagram, how would you describe the likelihood that it is black ?

a)

certain

b)

likely

c)

impossible

d)

even chance

3.

If you randonmly selected a marble, how would you describe the likelihood that it is black?

a)

certain

b)

probable

c)

unlikely

d)

even chance

4.

If you randomly select a marble without looking, how would you describe the likelihood that it is white?

a)

certain

b)

likely

c)

even chance

d)

impossible

5.

Something that is unlikely has a probability of ...

a)

1

b)

Between 0.5 and 1

c)

Between 0 and 0.5

d)

0

6.

Something that is impossible has a probability of ...

a)

1

b)

Between 0.5 and 1

c)

Between 0 and 0.5

d)

0

7.

An outcome is:

a)

a process or experiment that can be repeated many times.

b)

the result of an experiment.

c)

a set of all possible outcomes.

d)

the number of times an experiment is conducted.

8.

A chance experiment is:

a)

a process or experiment that can be repeated many times

b)

The result of an experiment.

c)

A set of all possible outcomes.

d)

the number of times an experiment is conducted

9.

Sample Space is:

a)

a process or experiment that can be repeated many times.

b)

the result of an experiment.

c)

a set of all possible outcomes.

d)

the number of times an experiment is conducted.

10.

Trials are:

a)

a process or experiment that can be repeated many times.

b)

the result of an experiment.

c)

a set of all possible outcomes.

d)

the number of times an experiment is conducted.

11.

The sample space for the spinner is:

a)

S = {F}

b)

S = {A, B, B}

c)

S = {A, B, C, D, E, F}

d)

S = {A, A, B, C, E, E, E, F}

12.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)

a percentage

d)
all of the above
13.
What is the probability of spinning red?
a)
0
b)

12\frac{1}{2}  

c)

15\frac{1}{5}  

d)
1
14.

If a coin is flipped, what is the probability of getting a tail?

a)

12\frac{1}{2}

b)

1

c)

2

d)

21\frac{2}{1}

15.

What is the probability of randomly choosing March from the months of a year?

a)

112\frac{1}{12}  

b)

1

c)

3

d)

312\frac{3}{12}  

16.

What is the probability of randomly selecting a day that starts with the letter T from the days of the week?

a)

27\frac{2}{7}  

b)

2

c)

7

d)

17\frac{1}{7}  

17.

There are 3 red marbles and 4 blue marbles in a jar. 

What is the probability of randomly selecting a red marble from the jar?

a)

34\frac{3}{4}

b)

312\frac{3}{12}

c)

37\frac{3}{7}  

d)

47\frac{4}{7}

18.

A regular 6-sided die is rolled. What is the probability of getting a number more than 2?

a)

23\frac{2}{3}

b)

56\frac{5}{6}

c)

16\frac{1}{6}

d)

13\frac{1}{3}

19.

There are 4 blue marbles and 12 yellow marbles in a jar. 

What is the probability of randomly selecting a blue marble?

a)

412\frac{4}{12}

b)

14\frac{1}{4}

c)

34\frac{3}{4}

d)

448\frac{4}{48}