Which is the best way of plotting discontinuous variation?

Discontinuous variation is best represented through a bar graph or a pie chart. Here are the steps to do so:

1. Collect Data: The first step is to collect and organize your data. This could be any kind of categorical data that shows clear, distinct categories or groups. For example, blood types in a population.

2. Choose the Type of Graph: For discontinuous variation, a bar graph or a pie chart is usually the most effective. A bar graph is good for comparing different categories, while a pie chart gives a good visual representation of the proportions of each category.

3. Create the Graph: If you're using a bar graph, label the x-axis with the different categories and the y-axis with the frequency or count. For each category, draw a bar that corresponds to its frequency. If you're using a pie chart, divide the circle into segments that correspond to the proportions of each category.

4. Label the Graph: Make sure to give your graph a title that clearly describes what it represents. Also label each bar or segment with its corresponding category and frequency or proportion.

5. Interpret the Graph: Look at the graph to understand the distribution of your data across the different categories. This can give you insights into the nature of the discontinuous variation you're studying.

Remember, the key to plotting discontinuous variation is to clearly and accurately represent the distinct categories in your data.