1. Click the add button. 2. Use the draw button or the labels to fill in the bottom box about the fundamental counting principle. Show how you can determine the total number of outcomes using the principle. 3. Drag the labels to the right to create a tree diagram to show the possible outcomes. Use the draw tool to add the lines between the levels. 4. List the sample space in the comments. List one combination like this: baseball cap and winter coat. 5. Click the green check to add it to your journal.