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Probability Vocabulary & Practice

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

What is an event that will happen or has a probability of 1?

a)

theoretical

b)

probability

c)

mutually exclusive

d)

certain

2.

outcome with the same chance of occurring

a)

mutually exclusive

b)

impossible

c)

equally

d)

independent

3.

an event with a probability of zero

a)

impossible

b)

mutually exclusive

c)

outcome

d)

outcome

4.

Mathematical calculation that an event will happen in theory.

a)

odds

b)

theoretical probability

c)

outcomes

d)

dependent event

5.
Possible results of an event
a)
outcomes
b)
compound event
c)
simple event
d)
probability
6.

Probabilities are always between...

a)

0 & 1 or 0% & 100%

b)

0 & 100 or 0% & 1%

c)

1 & 100

d)

2 & 1

7.

A set of all possible outcomes of one or more events. Ex. {1,2,3,4,5,&6}

a)

Independent Events

b)

Outcome

c)

Probability

d)

Sample Space

8.
The probability of an event is written as P(event).
a)
False
b)
True
9.

A ________ consists of 2 or more events.

a)

single event

b)

prediction

c)

compound event

d)

experiment

10.

Identify the following scenario as experimental or theoretical:


Samantha flips a coin 10 times and the result is heads 7 times. She concludes that the probability of getting heads must be 7/10

a)

Experimental

b)

Theoretical

11.
# of favorable outcome divided by the total possible outcomes
a)
Percent
b)
Probability
c)
Sample Space
d)
Chance
12.
If the probability of an event happening is unlikely, the chances of it happening are...
a)
greater than 1/2
b)
less than 1/2
13.

Probability can be written as...

a)

a fraction

b)

a decimal

c)

a percentage

d)

all of these

14.

An event that is likely is closer to...

a)

0

b)

1

c)

2

d)

3

15.

An event that is unlikely is closer to...

a)

0

b)

1

c)

2

d)

3

16.

A reasonable mathematical guess that something is about to happen

a)

Probability

b)

Compound Event

c)

Prediction

d)

Sample Space

17.

Probability based on what should happen when conducting a probability experiment

a)

Theoretical Probability

b)

Random

c)

Compound Event

d)

Experimental Probobility

18.

Which is an example of theoretical probability?

a)

The probability of rolling a 4 on a die is 1/6.

b)

I flipped a coin and it landed on tails 2/10 times.

19.

Which is an example of experimental probability?

a)

The spinner landed on three 7 out of 10 times (7/10)

b)

The probability of landing on tails is 1/2.

20.

Which is an example of sample space?

a)

The students were picked at random.

b)

A coin has 2 sides (heads and tails)

21.

What is one or a group of possible outcomes for a given situation called?

a)

sample space

b)

event

c)

complementary event

d)

probability

22.

What is the number of times an experiment is performed called?

a)

sample space

b)

trials

c)

uniform

d)

non-uniform

23.

What is the probability of rolling a 7 on a die?

a)

0

b)

1/2

c)

1/6

d)

1

24.

What is the probability of rolling an even number on a die?

a)

0

b)

1/2

c)

1/6

d)

1

25.

If the probability of grabbing a red jolly rancher from the bucket is 4/5, predict the number of times a red jolly rancher will be grabbed if you attempt it 20 times.

a)

0

b)

4

c)

10

d)

16