InfoPath Dev

Hi all, I'm trying to put together a formula to return the "Highest" severity recorded in a form. The users have 4 choices: Negligible (1), Low (2), Medium (3), High (4). There are 10 questions on the form, if the user picks "Low" for nine questions, and picks High on one question...

Hi, I have created a webservice for sharepoint. The webmethod should return array of values which in turn will be populated in Infopath dropdownlist. So could anyone please tell me how to do that Please help me