Question: What's the sum of all values in category 1 when category 3 is equal to 300?
SQL: SELECT SUM("Category 1") FROM "2-170567-1" WHERE "Category 3" = '300';

Question: If category 1 is 0.05, what is category 3?
SQL: SELECT "Category 3" FROM "2-170567-1" WHERE "Category 1" = 0.05;