Here's why:
* Global Variation: Some countries have high levels of multilingualism (like Switzerland or India), while others are primarily monolingual (like Japan or Iceland).
* Definition of "Speak": Do we count fluency, basic understanding, or just being able to say a few words?
However, here's some general information:
* Worldwide: It's estimated that around 60% of the world's population speaks more than one language.
* Europe: In Europe, multilingualism is common, and many people speak two or more languages.
* United States: The US is more monolingual, but there is still a significant amount of bilingualism, particularly in regions with large immigrant populations.
Ultimately, the number of languages an average person speaks is heavily influenced by factors like:
* Location: Where they live
* Education: Opportunities to learn other languages
* Family: If parents speak multiple languages
* Cultural Exposure: Exposure to other cultures
Instead of focusing on an average, it's more interesting to consider the diverse range of language abilities across the globe!