Name: 
 

Lesson 10.4: Communicate about Probability



 
Match each term with its definition.
a.
sample space
f.
independent events
b.
dependent events
g.
outcome
c.
tree diagram
h.
theoretical probability
d.
event
i.
complementary event
e.
probability
j.
outcome table
 

 1. 

A way to record and count all combinations of events using lines to connect to parts of the outcome.
 

 2. 

Two events where the probability of one is not affected by the probability of the other event.
 

 3. 

A chart that lists all possible outcomes of a probability experiment.
 

 4. 

Two events where the probability of one is affected by the probability of the other event.
 

 5. 

A set of one or more outcomes in a probability experiment.
 

 6. 

The set of outcomes in the sample space in which the event does not happen.
 

 7. 

A result of an event or experiment.
 

 8. 

All the possible outcomes in a probability experiment.
 

 9. 

A number from 0 to 1 that shows how likely it is that an event will happen.
 

 10. 

The ratio of the number of favourable outcomes to the number of possible equally likely outcomes.
 



 
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