Certain or Impossible Worksheets

**Page 1**

1.

Determine whether the event is likely, unlikely, certain, or impossible to occur.

"New Year is celebrated on 1^{st} of January every year."

"New Year is celebrated on 1

a. | an impossible event | ||

b. | a likely event | ||

c. | a certain event | ||

d. | an unlikely event |

So, "New Year will be celebrated on 1

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 |

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 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 |

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."

"Yesterday was Sunday. Today is Saturday."

a. | likely event | ||

b. | an unlikely event | ||

c. | an impossible event | ||

d. | a certain event |

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 glass bottle, when dropped on the floor, breaks."

a. | a likely event | ||

b. | an unlikely event | ||

c. | a certain event | ||

d. | an impossible event |

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."

"Paul picking a cherry from a basket containing a bunch of grapes."

a. | certain event | ||

b. | unlikely event | ||

c. | likely event | ||

d. | 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 |

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 |

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 |

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 |

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

Correct answer : (4)

More Certain or Impossible Worksheets | |

Probability and Odds Worksheet | |