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WorksheetsProbability
Total questions: 20
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
What is the probability of choosing the letter
i from the word probability?
i from the word probability?
a)
1/10
b)
2/11
c)
2/2
d)
1/10
2.
Is it certain or impossible for the spinner to land on orange?
a)
imposssible
b)
certain
3.
What is the probability of the spinner landing on an odd number?
a)
4/8
b)
4/4
c)
1/4
d)
1/3
4.
What is the probability of choosing a marble
that is not green from the jar?
that is not green from the jar?
a)
10/20
b)
10/10
c)
3/20
d)
7/20
5.
Is it more likely or less likely to pull a red marble than a green marble?
a)
more likely
b)
less likely
6.
If you were to roll the die one time what is the probability of it landing on a 2?
a)
2 out of 6
b)
2 out of 2
c)
1 out of 6
d)
1 out of 1
7.
What is the probability of the spinner landing on red?
a)
5/12
b)
1/5
c)
5/5
d)
3/5
8.
I have 4 yellow marbles and 8 blue marbles in a bag. What is the probability that I will pick a blue?
a)
Likely
b)
Unlikely
c)
Certain
d)
Impossible
9.
What is the probability of flipping a coin and getting heads?
a)
1/2
b)
1/3
c)
1/4
d)
Never, Tails never fails.
10.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.
11.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
12.
The chart below represents the number of marbles in a jar.
P(green) =
P(green) =
a)
5/19
b)
10/28
c)
5/14
13.
P(not A) =
*Remember to simplify.*
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
14.
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%
15.
Probability can be between what two numbers?
a)
10 and 20
b)
0 and 100
c)
0 and 1
d)
All Numbers are possible
16.
The probability of an event occurring, P(A), can be expressed as a fraction, decimal, or percent.
a)
True
b)
False
17.
A set of all possible outcomes is known as -
a)
a list
b)
a complement
c)
a sample space
d)
an event
18.
What is an outcome?
a)
The result of an experiment
b)
The chance or likelihood of an event
c)
A fraction, decimal, or a percent
d)
An activity that gives various results
19.
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%
20.
Eight cards labelled with the letters "T,H,U,R,S,D,A,Y" are put in a box. A card is chosen at random from the box. Calculate the probability that the card chosen is labelled with a vowel or letter "R".
a)
43
b)
85
c)
41
d)
83
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