In this TED talk Nate Silver analyses voting patterns in the 2008 General Election and asks whether race affects votes. His conclusion is quite optimistic:
Duolingo Opens Up Premium Content For Free, But It Won’t Help Schools Since
They Won’t Sign Student Data Privacy Agreements
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Duolingo is great, and students love it to practice on their own.
Duolingo is now giving free users access to advanced learning content.
Unfortunately, m...
4 hours ago

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