Writing Your IA With Probability

When writing your IA with probability, the main question you are asking yourself is "are these two events dependent on each other?". You will analysis this through creating Two Way Tables, Venn diagrams, and Tree diagrams, looking at different formulas, and testing for independence.

Start with these videos first

If you are writing your IA with probably you will most likely follow this flow.

Raw Data
Two Way Table
Tree diagram
Basic Probabilities
Conditional probabilities
Check for Independence
Conclusion

The following videos are to help guide you in case you forgot how to do these calculations.

Probability Data Collection Overview

probability data collection

How to make a google form

creating a google survey

How to insert data on your Google Docs

1. insert data into a google doc

1.How to make a tree diagram

2. tree diagram and inserting a hand drawn image

Diagrams

You do not need to make every diagram. In fact, sometimes one diagram works much better than another.

Watch these videos to remind yourself how to create a two way table, venn diagram, and tree diagram.

Remember, once you have your diagram you should insert it into your Data Analysis Template and answer the guided questions.

2.How to make a Two Way Table

3. Two Way Table: How to create it.mp4

3.Making a Venn Diagram

4. Venn Diagram: show how to save a picture and edit in doc.mp4

Math With Diagrams

You have all these diagrams... Now What?

Let's do some math! Here are 3 videos that show you math calculations you can do with each diagram. Remember to define your variables, type out your steps, and input each calculation into your Data Analysis Template.

Every calculation should be shown and analyzed. As in, you should explain your answer.

What does it mean?
What does it tell you?
What does it make you wonder?
Should you look at more info or do another calculation to understand it?
Does it support your aim?

1.1 Math with a Tree Diagram

2.1 using a tree diagram for 'and' and 'or'

2.1 Math with Two Way Table

3.1 Two Way Table: How to do the Math.mp4

3.1 Math with Venn Diagram

4.1 using a Venn Diagram for 'and' and 'or'

Conditional Probability With Tree Diagram

2.2 conditional probability with a tree diagram

Other Probability Calculations

Depending on your question, you will most likely need to show if your events are conditional or not.

Depending on the diagram you have, you will use different processes to show this.

The goal is to prove whether your events are influencing one another or if they are independent.

Independence With Tree Diagram

2.3 independence with tree diagram

Conditional Probability with Venn Diagram

4.2 conditional probability with a Venn Diagram

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