Video solutions to help Grade 7 students learn how to
determine the possible outcomes for simple chance experiments.

Related Topics:

Lesson
Plans and Worksheets for Grade 7

Lesson
Plans and Worksheets for all Grades

More
Lessons for Grade 7

Common Core For Grade 7

• Given a description of a chance experiment that can be thought of as being performed in two or more stages, students use tree diagrams to organize and represent the outcomes in the sample space. Students calculate probabilities of compound events.

Tree diagrams can be used to organize outcomes in the sample space for chance experiments that can be thought of as being performed in multiple stages. Tree diagrams are also useful for computing probabilities of events with more than one outcome.

Lesson 6 Classwork

Example 1: Two Nights of Games Imagine that a family decides to play a game each night. They all agree to use a tetrahedral die (i.e., a four-sided pyramidal die where each of four possible outcomes is equally likely—see image on page 9) each night to randomly determine if they will play a board game ( ) or a card game ( ). The tree diagram mapping the possible overall outcomes over two consecutive nights will be developed below. To make a tree diagram, first present all possibilities for the first stage. (In this case, Monday.)

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

data-ad-region="y21">