Full on implementation of Flot on WordPress to create dynamic, responsive graphs and charts.
Flot for WordPress just gives you the libraries and framework to start adding data of your own. You'll want to create a function and shortcode to get data from a database, or just hardcode some data into a PHP file.
We have lots of examples in the plugin files.
Go through your code with a fine-toothed comb. Consider viewing source and pasting the page into validator.w3c.org and check for errors. The nature of the Flot library is that it is very picky - the smallest syntax error and you won't see anything.
Also, make sure you have a defined height and width for the flot-container div.