user: ### NOW ANSWER:
Question: What is the Population density that has a Change (%) higher than 10.4, and a Population (2011) less than 8574, in the County of queens?
Columns: ['County', 'Population (2011)', 'Population (2006)', 'Change (%)', 'Area (km²)', 'Population density']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Prince', 1135.0, 1081.0, 5.0, 4.5, 252.1]
SQL:

assistant: SELECT AVG("Population density") FROM "Table" WHERE "Change (%)" > 10.4 AND "County" = 'queens' AND "Population (2011)" < 8574.0;