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Certain or Impossible Worksheets

Certain or Impossible Worksheets
  • Page 1
 1.  
Determine whether the event is likely, unlikely, certain, or impossible to occur.
"New Year is celebrated on 1st of January every year."
a.
an impossible event
b.
a likely event
c.
a certain event
d.
an unlikely event


Solution:

The event that will happen is a certain event.

So, "New Year will be celebrated on 1st of January every year." is a certain event.


Correct answer : (3)
 2.  
Choose whether the event is likely, unlikely or equally likely to occur. "New Year is being celebrated in the month of June."
a.
an unlikely event
b.
a likely event
c.
an impossible event
d.
a certain event


Solution:

The event that cannot happen is called an impossible event.

So, "New Year is being celebrated in the month of June." is an impossible event.


Correct answer : (3)
 3.  
Determine whether the event is likely, unlikely, certain, or impossible to occur.
"A coin dropped would land on the floor showing a head."
a.
a certain event
b.
an impossible event
c.
a likely event
d.
an unlikely event


Solution:

The event will most probably happen.

So, it is a likely event.


Correct answer : (3)
 4.  
Determine whether the event is likely, unlikely, certain, or impossible to occur.
"Yesterday was Sunday. Today is Saturday."
a.
likely event
b.
an unlikely event
c.
an impossible event
d.
a certain event


Solution:

The event is impossible to occur.


Correct answer : (3)
 5.  
Determine whether the event is likely, unlikely, certain, or impossible to occur.
"A glass bottle, when dropped on the floor, breaks."
a.
a likely event
b.
an unlikely event
c.
a certain event
d.
an impossible event


Solution:

The event will most probably happen.

So, it is a likely event.


Correct answer : (1)
 6.  
Determine whether the event is likely, unlikely, certain, or impossible to occur.
"Paul picking a cherry from a basket containing a bunch of grapes."
a.
certain event
b.
unlikely event
c.
likely event
d.
impossible event


Solution:

An event that has no chance of occurring is called an impossible event.

It is impossible to pick a cherry from a basket containing a bunch of grapes.

So, it is an impossible event.


Correct answer : (4)
 7.  
An event that has no chance of occurring is called __________ event.
a.
a favorable
b.
an impossible
c.
a possible
d.
a certain


Solution:

An event that has no chance of occurring is called an impossible event.


Correct answer : (2)
 8.  
An event A is an impossible event. What is its probability?
a.
P(A) = 3
b.
P(A) = 2
c.
P(A) = 0
d.
P(A) = 1


Solution:

An event that has no chance of occurring is called as an impossible event.

If event A is impossible, then P(A) = 0.


Correct answer : (3)
 9.  
An event that is certain to occur is called _________ event.
a.
a favorable
b.
a certain
c.
an impossible
d.
a possible


Solution:

An event that is certain to occur is called a certain event.


Correct answer : (2)
 10.  
An event A is a certain event. What is its probability?
a.
P(A) = 2
b.
P(A) = 0
c.
P(A) = 3
d.
P(A) = 1


Solution:

An event that is certain to occur is called a certain event.

If event A is certain, then P(A) = 1.


Correct answer : (4)

More Certain or Impossible Worksheets
Probability and Odds Worksheet
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