**Seventh graders, you know that you have a test (Criterion A--Knowing and**

**understanding) on Wednesday, May 3. Here is a study guide to help you prepare.**

**Things you should know how to do:**

- Estimate the likelihood of an event, using the 0-1 scale
- Find mathematical probabilities for a variety of situations
- Make predictions based on given probabilities
- Create a tree diagram to show all possible outcomes
- Decide if a situation is fair or not
- Be able to explain your thinking in words and/or a table

**Things that can help you review:**

**Your notebook:**

This
should be your best source for studying (if you took notes and kept it
organized). It has vocabulary and
important ideas. You have examples of how
to organize data in tables for finding mathematical and experimental
probabilities.

**YouTube videos:**

Here
is a review of what probability is. It
explains how to find the mathematical probability of a specific event.

Here
is the Khan Academy’s explanation of what probability is—especially experimental
probability.

This
video looks at fairness and experimental data.
It also reminds us that probability is not a guarantee.

What’s
the difference between theoretical (or mathematical) probability and
experimental probability? This video
tries to explain it.

Here
is a pretty easy explanation of how to create a tree diagram.

**Websites:**

*Mathisfun.com*is always a good place to look for definitions and explanations of math ideas. Here are some topics to look at:

tree-diagrams There are some practice problems at the
bottom of the page.

definitions There are a number of definitions with
examples. More practice problems at the
bottom.

*Brainpop.com*has an introduction. https://www.brainpop.com/math/probability/basicprobability/

**IXL:**

Grade
7 lessons to practice: DD1-DD5

Grade
6 lessons to practice: II 1-5

**Textbook**

Pp. 368-383. Try any of the practice problems we did not do in class.