Statement:
An average person in Cuba drinks less alcohol than in Argentina

In the Alcohol average daily consumption rating Cuba holds position #104 2016 out of 189 and Argentina is #91 out of 189 2016.
Position of Cuba is better than position of Argentina.
Both countries holds average positions in the "Alcohol average daily consumption" rating. So Both sexes is an average for both Cuba and Argentina, compared to most countries of the World.

Referencies:

  1. Alcohol average daily consumption 2016 by WHO
    The countries in the rating sorted by 'Both sexes' in descending order.
    Argentina 'Both sexes' value is 31.5
    Cuba 'Both sexes' value is 28.5