Question

In what countries does Shia Muslims comprise a majority of the populations?

Answer 1

Iran, Azerbaijan, Iraq, Bahrain and Lebanon.

Explanation:

Additional resources, figures and charts here:
http://www.worldatlas.com/articles/shia-shi-a-muslim-countries.html

http://www.pewforum.org/2011/01/27/future-of-the-global-muslim-population-sunni-and-shia/