In a frequency table, the number of houses with $0,1,2,3,4$ children are $6, 8, 5, 3, 2$. How many houses…

In a frequency table, the number of houses with $0,1,2,3,4$ children are $6, 8, 5, 3, 2$. How many houses have at most $2$ children?
  1. $5$
  2. $13$
  3. $19$
  4. $24$

Solution

At most $2$ means $0,1,2$: $6+8+5 = 19$.

Asked in: IMO

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