premise: The age distribution, , in Lausanne is; 11,818 children or 9.4% of the population are between 0 and 9 years old and 12,128 teenagers or 9.7% are between 10 and 19. Of the adult population, 21,101 people or 16.8% of the population are between 20 and 29 years old. 22,158 people or 17.6% are between 30 and 39, 18,016 people or 14.4% are between 40 and 49, and 13,940 people or 11.1% are between 50 and 59. The senior population distribution is 11,041 people or 8.8% of the population are between 60 and 69 years old, 8,277 people or 6.6% are between 70 and 79, there are 5,896 people or 4.7% who are between 80 and 89, and there are 1,171 people or 0.9% who are 90 and older.
hypothesis: 30 and 39 makes up the largest percentage of the population