Is the ''Only a minority of Muslims are radical'' true?

[Mister Agenda]

Can you explain to me how it is bias?

There are 49 Muslim-majority countries in the world. Maybe more than six or seven need to be surveyed to get a picture of Islam. And maybe it shouldn't be restricted to Muslim majority countries, millions of Muslims live in countries where they are a (persecuted in some cases) minority; their opinions ought to count for something too. Radical needs to be defined, and so does 'sharia', which means different things to different Muslims. If you surveyed Americans and found out how many would like 'Biblical Law' instituted, you wouldn't think they were all for going back to stoning adultresses, would you?
It's biased because it leaves way too many Muslims out, and given the site, it's likely that the countries with the most alarming responses were cherry picked.