>But, even 200 sites per country is enough for a proper random sample
Yes, but my concern is that they may only have a handful of sites (or none at all) for a long tail of smaller countries.
>Even more so when you consider that a site is not a single observation, but reports data about all the users visiting it.
True, so it depends on whether or not users of popular international sites from a particular country are representative of all users from that country.
Comments
>But, even 200 sites per country is enough for a proper random sample
Yes, but my concern is that they may only have a handful of sites (or none at all) for a long tail of smaller countries.
>Even more so when you consider that a site is not a single observation, but reports data about all the users visiting it.
True, so it depends on whether or not users of popular international sites from a particular country are representative of all users from that country.