Hi,
in short - seblod can be used to create polls, but you 
would need to do end calculations yourself using tools like code plugin 
or sql plugin, where one can to code or mysql based calculations. This 
would work if you plan to create a single poll or perhaps a poll that 
would have a number of options with the same range (e.g. 1-5) and 
calculation would always be the same (e.g. an average from all questions
 ). 
One thing Seblod is not exactly the best tool for is to 
create flexible poll creation and calculation, that will be 
set/configured by your client (e.g. weighted answers etc). It would be 
possible but it would require a huge amount of work to create smooth 
user experience compared to specialized tpolling extensions.
Please give us more details about input and output side, otherwise it is impossible to give some more definite answer.