Using an outcome tree to display outcomes for two events
I can systematically find all the possible outcomes for two events by using an outcome tree diagram.
Using an outcome tree to display outcomes for two events
I can systematically find all the possible outcomes for two events by using an outcome tree diagram.
Lesson details
Key learning points
- Possible outcomes for two events can be shown in an outcome tree diagram.
- The outcome tree diagram can be used to generate either an outcome table or list.
- An outcome tree can be generated from either an outcome table or list.
Common misconception
Every group of branches should have the same number of branches.
In a multi-staged trial, each stage may have a different number of outcomes. The number of branches in each group reflects the number of outcomes of a stage. This means each group of branches can be made from a different number of branches.
Keywords
Tree diagrams - Tree diagrams are a representation used to model statistical/probability questions. Branches represent different possible events or outcomes.
Outcome tree - Each branch of an outcome tree shows a possible outcome from an event or from a stage of a trial. The full outcome tree shows all possible outcomes.
Sample space - A sample space is all the possible outcomes of a trial. A sample space diagram is a systematic way of producing a sample space.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
A -
30
B -
11
C -
121
D -
10
E -
5
Exit quiz
6 Questions
a -
16
b -
27
c -
8
a -
11
b -
16
c -
13
a -
6
b -
14
c -
15
d -
5
e -
10